Yoga is a great way to harnish your energy, allowing you to improve your day to day energy and sexual energy, although these books are geared towards breathing, the complete method, common mistakes etc and will help you towards your goal.

Content:

Yoga Kundalini
The Yoga System
Eight Lectures on Yoga
The science of breath
Thought power

Sample
Life is a journey from impurity to purity, from hatred to cosmic love, from death to
immortality, from imperfection to perfection, from slavery to freedom, from diversity to unity,
from ignorance to eternal wisdom, from pain to eternal bliss, from weakness to infinite strength.

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