Thoughts Are Things is Prentice Mulford’s collection of essays on the power of thought, first published in book form in 1889. Mulford, an American writer and early New Thought voice, taught that every thought is a force that shapes health, mood and circumstance. This study guide walks through eight key themes from the essays in plain language, then hands you a workbook to try the ideas on your own life.

Listen While You Study
The audiobook is available on Next Level Soul TV. Play a theme, then come back here for the notes and the workbook prompt.
Key Takeaways
- Thoughts are forces, says Mulford, and what you think regularly shapes how you feel and act.
- Like draws like, the author argues, so a calm and hopeful mind tends to meet calm and hopeful things.
- Worry is a habit, and the book offers simple ways to let it go.
- Rest matters, because Mulford teaches that a still mind takes in fresh strength.
- Look within, for the author describes an inner source of guidance open to everyone.
The Book at a Glance
| Detail | What to Know |
|---|---|
| Author | Prentice Mulford (1834 to 1891) |
| First published | 1889, as a collection of essays |
| Tradition | New Thought |
| Themes | 8 |
| Audiobook | Available on Next Level Soul TV |
What Is Thoughts Are Things About?
Thoughts Are Things gathers essays by Prentice Mulford, a former California miner and journalist who turned to writing about the mind. The book appeared in 1889, and the essays first came out in the 1880s. Mulford is counted among the pioneers of the New Thought movement.
The central claim, in Mulford’s words and view, is that thoughts are real forces. He teaches that what we think builds our moods, our health and our paths through life. He asks readers to guard their minds, drop fear, rest more and trust an inner source of strength. These are the author’s teachings, not proven facts.
The Board: 8 Themes
Each square is a theme. Tap one to jump to its study notes.
- 1Thought as Force
- 2Law of Success
- 3Mind and Health
- 4Giving Up Worry
- 5Rest and Renewal
- 6The God Within
- 7Wise Company
- 8Letting Go
Theme-by-Theme Study Notes
These notes are our own summary, written to help you follow the book. Each one ends with a small practice you can try this week.
Thoughts Are Things
Mulford teaches that every thought is a real force that goes out from you and has an effect. He says an idea held with feeling does not simply vanish. It shapes your mood, your health and the people around you. The essay invites you to treat your mind as a workshop, not a waiting room. Read this theme as the base for everything else in the book. If thoughts really are forces, then small daily choices about what to dwell on begin to matter a great deal.
Thought and Success
Mulford describes success as the result of steady, positive thinking joined with calm effort. He argues that like draws like, so the mind you carry tends to meet matching people and events. He is often named as an early voice of what later became the law of attraction. He asks readers to hold a clear aim. The tone is hopeful and practical. Success here is not luck or hustle alone, but a steady habit of expecting good and working toward it with a settled, cheerful mind.
Mind and Body
The author teaches that worry, fear and anger weigh on the body, while peace and cheer support it. He treats the mind as a partner to physical well-being, not a separate matter. He is not giving medical advice, and neither does this guide. The point is to notice how mood and body move together. Mulford wants readers to become observers of their own moods, so they can see which thoughts leave them tired and which leave them light and ready for the day.
Letting Go of Worry
Mulford urges readers to stop feeding fear and anxious scenes in the mind. He describes worry as a habit that drains energy and calls in what you dread. His remedy is to drop the habit gently and turn attention to something steadier. He treats it as a daily choice, not a single event. The tone is firm but kind. Mulford does not shame the worrier. He simply says that attention is yours to direct, and that every calm minute makes the next one easier.
The Value of Rest
The author describes rest as more than sleep. He teaches that a quiet, passive mind lets fresh strength flow in, and that constant hurry cuts people off from it. He invites readers to pause, be still and let tension go. Renewal, in his view, comes when we stop pushing. He pairs this with the idea that busy minds attract more busyness. Learning to be quiet, he says, is a skill worth practising, and the results show up in clearer thinking.
The Inner Source
Mulford writes that a greater intelligence lives inside each person and can be drawn on through stillness and trust. He describes this as an inner source of strength and guidance. This is the author’s spiritual view, offered as an invitation to look inward. He presents it as open to every reader. Notice that the claim is offered as personal experience and spiritual belief. Treat it as a question to explore in quiet moments, and judge it by whether it brings you steadiness.
Surroundings and Influence
The author teaches that the thoughts of others reach us, and that crowds, habits and places can leave a mark on our mood. He encourages readers to pick company and surroundings with care and to protect their own inner calm. He frames this as guarding, not hiding. The aim is not to avoid people, but to notice who leaves you drained and who leaves you stronger. Mulford says your inner state is worth defending, and that choosing wisely is a form of self-respect.
Letting Go of Harmful Thoughts
Mulford calls for dropping harmful thoughts, grudges and unkind habits, so the mind can fill with better things. He argues that hate and resentment are costly to the one who holds them. The practice is to stop first, then build. It asks for honesty, not perfection. Mulford links this to everything before it. Clearing out bitterness frees energy for the hopeful, creative thoughts he wants readers to grow, so the stopping is a doorway, not a punishment.
Key Ideas in Plain Language
| Idea | What It Means | Theme |
|---|---|---|
| Thoughts are forces | Mulford says each thought goes out and has real effects, on you first. | 1 |
| Like draws like | The author teaches that your mental state tends to bring matching people and events. | 2 |
| Mind and body | He describes mood and health as closely linked, without offering medical claims. | 3 |
| Worry as a habit | Fear is treated as a pattern you can stop feeding, one moment at a time. | 4 |
| Stillness | Quiet rest is shown as a way to renew strength, not as wasted time. | 5 |
| The inner source | Mulford describes a greater intelligence within every person. | 6 |
| Guarding influence | Other people and places can shape your mood, so choose them with care. | 7 |
| Ceasing | Stopping harmful thoughts first leaves room for better ones to grow. | 4, 8 |
Who This Book Is For
This guide suits anyone curious about the roots of positive thinking, the law of attraction and New Thought. You do not need any background. If you like short, practical essays about mood, worry and inner strength, you will feel at home. It also helps readers who want to hear where modern self-help ideas first took shape. Read it with an open mind and test each idea against your own life.
An 8-Day Way to Use It
- Read or listen to one theme a day, and write down one line that stands out.
- Do the small practice for that theme before bed, even if it only takes two minutes.
- Keep a short thought log: note one thought that helped and one that hurt each day.
- On day 9, reread your notes, pick the practice that helped most, and make it a habit.
Your Workbook
Your answers save on this device as you type. They are not sent anywhere. Use the copy button to move them into your own notes.
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Keep Going
- Manifestation Techniques: 15 Grounded Practices to Try
- Manifestation vs Law of Attraction: The Difference, History and More
- I AM Power audio course, a lesson-by-lesson look at the power of thought
Sources and Further Reading
Go Deeper with NLS Mastery: Becoming Nobody
Mulford teaches that ceasing harmful thoughts is the first step toward a calmer, stronger mind. If you want to take that idea further, Kyle Cease teaches it in Becoming Nobody, part of NLS Mastery. Watch the course preview below.
Frequently Asked Questions
What is Thoughts Are Things about?
It is a collection of essays by Prentice Mulford on the power of thought. The author teaches that thoughts are real forces that shape mood, health and circumstance, and he offers simple ways to use them well.
Who wrote Thoughts Are Things and when?
Prentice Mulford, an American writer and early New Thought figure, wrote it. The essays first appeared in the 1880s, and the book was published in 1889. Mulford lived from 1834 to 1891.
What kind of book is Thoughts Are Things?
It belongs to the New Thought tradition, which holds that mind and belief shape experience. It is a practical, spiritual self-help book written in the late nineteenth century.
How many essays are in Thoughts Are Things?
This guide groups the book into eight themes rather than listing exact essay titles, because the contents vary between editions. The themes cover thought as force, success, health, worry, rest, the inner source, influence and letting go.
What does “thoughts are things” mean?
Mulford means that a thought is not just private. He teaches that it carries force, goes out from you and helps build your feelings, health and surroundings. This is his view, not a scientific finding.
What does Mulford teach about worry?
He describes worry as a draining habit that calls in what you fear. His advice is to stop feeding it and turn your attention to calmer, more useful thoughts.
What is the law of success in Mulford’s writing?
Mulford links success to steady positive thinking and clear aims. He is often named as an early voice of the law of attraction, an idea that has no proven scientific basis.
How should a beginner read Thoughts Are Things?
Take one essay or theme at a time and pause to reflect. Try the small practice from this guide, then write one line about what you noticed. Slow, steady reading works better than rushing.
Is Thoughts Are Things hard to read?
The ideas are simple, but the language is from the 1880s, so some phrasing feels formal. Listening to the audiobook and using this guide’s plain summaries makes it easy to follow.
How long does it take to go through Thoughts Are Things?
The essays are short, so you can finish the book in a few sittings. This guide suggests an eight-day plan with one theme and one small practice each day.
How does this study guide and workbook help?
It gives plain-language summaries of each theme, a list of key ideas, and a small practice for every one. It turns the reading into something you can try in daily life and track.
Where can I listen to Thoughts Are Things, and what should I read next?
The audiobook is available on Next Level Soul TV. To go further, try other New Thought writers and books on positive thinking, mindfulness and the power of the mind.
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