Complete collection
Every session, in one place.
Search by title or audio filename, or use the program filters to narrow the collection.
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A free library crafted with care
Experience ultimate personal freedom.
Guided transformation, meditation, brainwave, relaxation, and CortiSounds sessions—together with practical guides and research.
Before listening
Choose a safe time and place.
Use headphones when a session calls for them, never listen while driving or operating machinery, and stop immediately if you experience unwanted effects.
Listening is voluntary and at your own risk. Before the first play or download, you will be asked to accept the Terms of Use and Safety Precautions.
Choose a path
Four ways to begin.
Select a path to open the Sessions page with that program already filtered.
Audio library
Sessions
Choose a program, read its instructions, and play or download any available track.
Listener experience
“The sessions are definitely life changing… My life seems to have had an overhaul and continues to amaze me.”
— Neil J., Scottsdale, Arizona. Individual experiences vary; no particular result is promised.
Knowledge library
Library
Guides, essays, research notes, reviews, and practical instructions—searchable in one place.
Browse the library
Guides, ideas, and evidence.
Search program instructions, essays, book reviews, and research notes. The full collection is listed below.
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Saved on this device
My Library
Your liked audio sessions, recent listening history, and the individual sessions you use most.
Private browser storage
Your listening library stays in this browser.
Favorites, listening history, and cumulative play time are stored for each individual audio session in this browser's local storage. They are not tied to an account or synchronized between devices. Clearing site data in your browser will also clear My Library.
Favorites
Liked audio sessions
Most recently liked first.
Listening history
Recently listened
Most recently played first.
Usage
Top 10 audio sessions used
Cumulative listening time for each audio session, shown as hours:minutes.
The Secret Brain
About
The story, thinking, and practical principles behind this personal-development library.
About the founder
The thinking behind The Secret Brain.
Hello and welcome. I am Dan Hoogterp, founder of The Secret Brain. I have been an avid user, student, and creator of personal-development tools throughout my life, combining interests in software engineering, cognitive science, psychology, and neuroscience.
The program is built around a pragmatic idea: create receptive states, practice new choices, and reinforce useful pathways until better responses become more natural.
Read more about the library