I figured TLJ character didnt have it in him to fight (or at least try) to fight against 'evil' anymore. I think that represented a good part of us. I feel we all will eventually get to a point where we dont want to fight the BS and just 'give up' I think his dream represent that conscience part of everyone mind that you fought a good fight but when a opponent rises that you obvisously cant contend with, just let it go!