Empathy with someone else's pain or lack and a desire to help need to be balanced with a deeper realization of the eternal nature of all life and the illusion of all pain. Then let your peace flow into whatever you do, and you will be working on the levels of effect and cause simultaneously.
Accepting means you allow yourself to feel whatever it is you are feeling at that moment. It is part of the is-ness of the NOW. You can't argue with what is. Well, you can, but if you do, you will suffer.