What is passion?

We often question why we do certain things which seem to have no percieved value.I wonder myself, what is it that prompts me to write.The rewards here are more psychological-the possibility of connecting with similar or different views and making a difference at some level to others. The desire to just share the beauty of the truth as I see it.We sometimes are forced beyond our comprehension to undertake tasks on our own accord which are not remotely monetarily rewarding but fulfill some deepseated desire and define the essence of our being.They make you go beyond the existence of self or your ego and do someting just for the sake of doing it.This is passion.