The sky in a dream commonly represents possibility and perspective -- how much room you feel you have to grow, or how far you're able to see beyond your immediate circumstances. A vast, open sky can reflect a sense of freedom, while a sky that feels low or closing in may point to constraints pressing on your sense of what's possible.
Destiny is not a matter of chance, it is a matter of choice; it is not a thing to be waited for, it is a thing to be achieved. (Bryan, William Jennings, 1860-1925, American Lawyer Politician)