If you become aware of the very basic situation of life - of body, of mind - a subtle anxiety will creep in, and then that anxiety will continue to tremble within you. Whatsoever you are doing or not doing, the anxiety will be there - a deep anguish. The mind is bridging an abyss, an impossible abyss. The body is going to die, and you have something - X - within you which is deathless.
These are two contradictions. It is as if you are standing in two boats which are moving in opposite directions. Then you will be in a deep conflict. That conflict is the conflict of the mind.