I have shared with several people about the sweet butterflies and I call them your "little hellos." I decided to look up if there was anything about butterflies in scripture and the tears began to well up in my eyes. This is what I found..
The Butterfly - A Symbol of New Life
The change from a larva, a worm like creature, to a lifeless looking chrysalis, to the emergence of a magnificent, winged butterfly has often been used as a symbol of the resurrection.
We are earthbound creatures with limited views of what the future might bring. Christ promises us a new body which will not know the limitations we have now. The butterfly symbolizes this change from an earthbound creature into a new form.