a beam of (something)(redirected from a beam of light)
a beam of (something)
informal A small but steadfast amount or source of something hopeful or positive. My lovely daughter has been a beam of joy in such a trying year of hardship. The charity is the sole beam of comfort to the many people displaced by war who have been reduced to such squalid conditions. I always thought baseball was boring, but I started following along this year, and the games have been a beam of happiness and excitement!
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.