Albert Barnes Commentary Proverbs 15:30

"The light of the eyes rejoiceth the heart; [And] good tidings make the bones fat." — Proverbs 15:30 (ASV)

The light of the eyes - The brightness which shines in the eyes of one whose heart and face are alike full of joy. Such a look acts with a healing and revitalizing power. Compare Proverbs 16:15.

A good report - that is, good news.