וְיָשֹׁ֧ב הֶעָפָ֛ר עַל־הָאָ֖רֶץ כְּשֶׁהָיָ֑ה וְהָר֣וּחַ תָּשׁ֔וּב אֶל־הָאֱלֹהִ֖ים אֲשֶׁ֥ר נְתָנָֽהּ׃
And the dust returneth to the earth as it was, and the spirit returneth unto God who gave it.
Read Jewish philosophical commentary on Ecclesiastes 12:7: and classical philosophical sources.