Whatever!
"I just wonder whether one can do that with Reiki. I mean cutting ties."
This is a deep question about what's possible to do in the universe and about your(our) understanding.The "cutting ties" implies that separation is wanted and possible.Oneness is not now ,but in a time yet to come!Is that true to you? If not, unity exists and relations are forever and the "cutting" evolves more to an entangeling/straitening/solving.
love
Ingewald