The RoS novelization is a hot mess where this is concerned. It initially seemed to imply that there was a biologic element required for the transfer to be successful(which is why Palpatine could only transfer his essence into Rey and not Kylo -- she was his direct 'offspring', and therefore a suitable vessel.)
But then Palpatine later states that had made the same "proposal" to Luke during RotJ(ie. strike me down in anger, and I will transfer my essence into you.)
"I am tired of Earth. These people.
I am tired of being caught in the tangle of their lives."
Last edited by Galan007 on Nov 23rd, 2020 at 01:49 PM