I mean, alot of things began foreshadowing in the Empire Strike Back movie, like the cutting of Luke's arm. It was like a sign that he held what his father held in him as well. The mechanic machinery that Darth Vader was.

Also, in the "Attack of the Clones", Anakin's hand was sliced off. Does this mean at this time Luke in some way mirrored his father at that time.

I don't know, just asking questions here...heheh

SHADDOWS OF THE EMPIRE. It tells us of LUKES adventures and training up into ROTJ.