Silence is most powerful. Speech is always less powerful than silence.

Concentration of the mind is in a way common to both Knowledge and Yoga. Yoga aims at union of the individual with the universal, the Reality. This Reality cannot be new. It must exist even now, and it does exist.

Apart from the body does the world exist? Has anyone seen the world without the body?

Nobody doubts that he exists, though he may doubt the existence of God. If he finds out the truth about himself and discovers his own source, this is all that is required.

Food affects the mind. For the practice of any kind of yoga, vegetarianism is absolutely necessary since it makes the mind more pure and harmonious.

Whatever be the means adopted, you must at last return to the Self, so why not abide as the Self here and now?

The self cannot be found in books. You have to find it for yourself, within yourself.