Spiritual,
I know that sometimes I feel as though I can feel someone, like their essence, kind of inside of me. I think that's what we consider our heart. I don't know if it's wishful thinking, or the memory of the intense connection we have had, or something truly spiritual going on. But I would say that perhaps it doesn't matter.
I also want to encourage you to continue posting. Come here, and as many places as you can think of, to seek understanding, comfort, solace. Unfortunately, it takes a very long time to start to feel whole again. You are doing all the right things.