This is the essence of all sciences - that you should know who you will be when the Day of Reckoning arrives.
RumiYou are the drop,and the ocean you are kindness,you are anger, you are sweetness,you are poison. Do not make me more disheartened. you are the chamber of the sun, you are the abode of venus, you are the garden of all hope. Oh, Beloved, let me enter.
Rumi