a dream

so i took a nap, i decided i wanted to take go to my friends house at night, there was lightning going around so i decided to wait under a tree for a few seconds,i moved from the tree to check above me and noticed that theres this thunder cloud angled down at me at an 180 degree angle so i jumped under the tree again, after a few minutes i decided to peak out to see if it was gone and the thunder struck my arm and my arm went all deformed, so i sprinted home and it ended.

this dream relates to something that happened like 3 days ago tho, i went to my friends house while they're was lightning was coming out of a bunch of clouds and i was staring at it at it as it was moving around, so i'm sure its relating to that dream, anyway what does this dream mean?