In my own experience the dreams that stay with me for days weeks etc have a greater meaning. Sometimes it is a vision with a hidden meaning and it is meant for me sometimes it is meant for someone elses and I have to figure out who its for and tell them. Then poof the memory is gone. Sometimes it is a peek into someone elses life. I say that because I dont think it is mine as sometimes it is within a short time past. So for your dream............ The color is obviously signifigant.
Perhaps it is just a peek into something that you cannot change but need to be aware of.
Thoughts of the vortex come to mind again so perhaps you are just glimpsing pieces of that.
Interesting though.
Just my two cents
Devine