What is belief, what is devotion, what is the will to live.

Essential problematic of living is how one despite difficulties, heartache and other turmoil brought upon most everybody, one is capable of finding possibilities within oneself? I can speak for myself.  Despite what anybody says you alone must know what you want to do, you must learn to know who you are.
I have consciously learned to be in every moment not looking for the next moment like living the future as now, but living the now as worth while happening and learned to appreciate this moment. And why is this important?