Why Does Grief Come Back? Understanding Grief Waves, Triggers, and Regrief

You can be having a perfectly normal day, minding your business, maybe even feeling pretty good about life. Then a song comes on, a memory pops up, or something reminds you of what you've lost, and suddenly grief is right there again.

What the hell? Weren't things getting better?

One of the more confusing parts of grief is how unexpectedly it can resurface.