The highest part that is or looks like a roof, typically the apparent vault that surrounds the Earth, but there is also sky in architecture (on top of a living room), in anatomy (the sky of the palate), . . . For some religions Heaven is the abode of angels and divine beings, and because it is a pleasant and appreciated place, someone is called heaven in affectionate form. From Latin caelum with the same meaning.
Sky: philosophical term which refers to the State of consciousness and absolute lucidity. Sobriety total in conditions of life to the society and the environment. Reasonable patriarchal hegemony, with dream-like reflection and descending sense merely physical natural environment, in which subjects recognize their King, as a personification of ABBA, the true God. Semitic model of an absolute Government.