see under heavy heart.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
Examples from the Web for light heart
Historical Examples of light heart
She smiled to see his light-heart joy, and said again, as if to herself, "In a while I shall cry to himI dinna need him yet!"Cleg Kelly, Arab of the City
S. R. (Samuel Rutherford) Crockett