The only thing that you really need to change is the punctuation. It's generally incorrect to start a sentence with "because" (unless the main clause or idea follows in that same sentence). In this case, you can just change the period to a comma- "It feels good to look at the sky in the morning, because that means I'm not busy on my way to work." To be a little picky, and to try to be more clear, I would make a couple other small changes- "It feels good to look at the sky in the morning, because it means I'm not busy rushing to work." The thing that remains a little unclear is whether you have time to look at the sky because you're not going to work at all, or because you are not busy or rushing to get to work (but you are still going). Hmmm. You'll have to answer that one! :)

lol, nice answer, Eli ;-)

Nothing to add Eli's message.