Hi,
Welcome to MWC. I hope you like it here. You will find that you get feedback that sometimes is contradictory. That's not a bad thing. You get to think about the suggestions and decide what you think.
So here's my two cents. Your Narrator was in love with someone who died and imagines another encounter with that person. You describe it as a spell. I imagined it as a dream. What strikes me as simply not real is that when N. breaks the spell (or wakes up), s/he is enraptured with having had those thoughts of a physical reunion - the day becomes golden. I would expect in this situation that N.'s emotions would be complex and conflicting, and not one purely and solely of bliss. There have to be wounds, scars, longing, dashed dreams, all of those things and not just heaven regained.
What you might want to consider to help make this more real is look at actual details, remembered scent, an object on the night stand that reminds N. of a foolish squabble that N. now regrets, the color of paint on the wall that reminds N. of painting the room together, etc. You may want to take a look at some of the posted poems of jkaram, Siobhan, and drab because each is very good at putting important detail into the text. Sometimes the entire poem can be written by arranging specific detail (I can't do it, but some can). I rambled, sorry about that.

T