I am everything. I am nothing. I can make you tremble in fear or make your sadness disappear. I've been with you since you've arrived and I will be with you at the moment you die. We've know each other for our entire lives. I know you but you create me so what am I?
Two people meet inside of a zoo and with some time a child was born. The child of two people had no clue, but the two people who meet they already knew. The child was the person who acted like glue. Who are the two people that met at the zoo?