The danger is of course, getting stuck in the past......
Yes. Intensive therapy takes you back...but hopefully with an eye for the future clearing.
My experience is that by doing so I've only dug myself deeper in denial unable to accept reality. But I guess this way you can get closure if that's what you need.
Self-reflection where we find, own, and dedicate a change therein will certainly lead to growth and moving forward. I'd consider it more of a glance though.