It turns out that Amazon KDP (Kindle Direct Publishing) does not give (even) me a free copy of the book. It only offers 5 days of free access to the book and then it goes back to the normal settings.
In a week from now, on August 8th, the book will be available for free on Kindle for 5 days. Here is the link:
Should you find the book useful, I highly appreciate you giving it a review/rating on Amazon and helping spread the word. Else, any other feedback is welcome.
I hope that this volume helps as many students as possible on their path of discovering the secrets of the mind!