When you have an experience of any kind, don't forget about the contrast of it.
Is light without the darkness surrounding it still light?
Is love without the fear of losing it still love? If you've never had it, you don't know it's missing.
The hardness of a tree trunk is given by the softness of the hand that is touching it.
The guilt one feels is given by the empathy that rises from hurting another.
Egoism is hidden in altruism when expecting appreciation.
Loneliness is what follows a deep connection.
The awareness of "bad" feelings is proportional felt with the unawareness of good times.