I know if you try to you can turn these gray skies back to sky blue

from Big Sean (Ft. Mike Posner) – Who Knows Lyrics on Rap Genius

Big Sean is saying that if God really wanted to he could turn bad days into good days. Or he could be switching back to referring to the listener, saying that it’s possible to change your own individual situation

Sky Blue is a popular Crayola Crayon color

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