heal
[heel]
-verb (used with object)
1. to restore to health
-verb (used without object)
2. to get well
Related forms:
healable, half-healed, unhealable, unhealed, well-healed, adjective
healer, noun
preheal, verb (used with object)

It's long,
It's difficult,
It's necessary.

You will be healed when you forget you were wounded.