Whatever caused you pain must've been very important to you.

[Possibly more important than anything else he's had to push away, if he's so conflicted]

Letting go is important, but sometimes...some things need a bit of time before they're ready to be released.

Think of it this way...if a Jedi were to get a serious wound, they'd require rest and time to heal before they're ready to go back to their duties, wouldn't they?