Letting Go...

I think about it from time to time.  Letting go, how do you do it.
Is it acceptance that I will never have Delilah in my arms again, that her little body is in the form of ashes in an urn in my room? 
Am I allowed to think that her sould will return to inhabit another body and we have have a second chance that way?
Is that wrong? 
What is letting go?  I said good bye when she passed away, is it okay to speak to her every night before going to sleep?
Lately I don't really have much to say, what does that mean.  I miss her, I miss her deperately.  I want to be her momma again. 
Is that possible, is that wrong for me to say to her, give her false hope, can she hear me, am I keeping her from moving on? 
I love her. 
I don't want to let go, not yet.