I don't think that's a dream at all, it looks like it's only a few years into the future why would he dream that he has to walk with a cane lolit aint that complex breh, they basically described it early in the convo between Maggie and Rick. He's thinking/dreaming about the future actively. Now alot of people are also treating it as a possible twist ending that this was all a dream. That part is just a theory tho
edit: what's happening between Negan and Rick and all that has nothing to do with the dreams. The dreams just serve as intermissions in the meantime. I have my own theory about what'll be the end result of the intermissions (basically where the dream bubble burst)
it aint that complex breh, they basically described it early in the convo between Maggie and Rick. He's thinking/dreaming about the future actively. Now alot of people are also treating it as a possible twist ending that this was all a dream. That part is just a theory tho




if he dies he deserves it

