If you know how to live, you will know everything about life and about death. But you will have to approach the positive.
Never make the negative the object of your study, because the negative is not there. You can go on and on and you will never arrive anywhere. Try to understand what light is, not darkness. Try to understand what life is, not death. Try to understand what love is, not hate.
If you go into hate you will never understand it, because hate is only the absence of love.
So is darkness the absence of light. How can you understand absence? If you want to understand me, you have to understand me, not my absence. If you want to study this chair, this chair has to be studied -- not that when Asheesh has taken it away, you start studying the absence. What will you study?