An attribute or quality considered as coming or going in a way comparable to the sun as it rises, sets, is concealed by clouds, etc.

That which causes or promotes happiness; a source of happiness, a blessing.

figurative. A source of happiness, prosperity, or intellectual or spiritual illumination. In early use with reference to Christ. Cf. sunshine, n. 3.

figurative and in figurative contexts. With of or possessive adjective. A source of happiness or prosperity. Frequently with reference to a…