What is Truth? A difficult question; but I have solved it for myself by saying that it is what the "voice within" tells you. All that I can in true humility present to you is that Truth is not to be found by anybody who has not got an abundant sense of humility. If you would swim on the bosom of the ocean of Truth you must reduce yourself to zero.
You cannot take away one atom of matter or one foot-pound of force. You cannot add to the universe one atom of matter or one foot-pound of force. As such, evolution does not come out of zero; then, where does it come from? From previous involution.
The empty mind - the pure mind - is not a blank, zero-land, where you're not feeling or caring about anything. It's an effulgence of the mind. It's a brightness that is truly sensitive and accepting. It's an ability to accept life as it is. When we accept life as it is, we can respond appropriately to the way we're experiencing it, rather than just reacting out of fear and aversion.