This is a strange English sentence to me, like it should sound abstract but it doesn't come across poetic enough? The idea of the sky being "the ceiling of my home" seems a lot more beautiful than the sky being "the roof of my house". Maybe because people tend to look up at their ceilings?

Unless, of course, I'm misunderstanding something in the translation. Or the Indonesian sounds more poetic than the English does.

A fancy way of saying you're homeless.

In either case there's no protection against rain. Does the sentence suggest stoic acceptance of primitive conditions, or is it just Duolingo being loony again?