To be beautiful in form (Genesis 39:6) signifies the good of life hence; and beautiful in aspect signifies the truth of faith hence; for form is the essence of a thing, but aspect is the existence thence derived. And whereas good is the very essence, and truth is the existence, thence, by beautiful in form is signified the good of life, and by beautiful in aspect the truth of faith.

(References: Arcana Coelestia 4985)