A ray or shaft of sunlight shining down through the air, often visible when it passes through dust or clouds.
Compound of 'sun' (Old English 'sunne') and 'beam' (Old English 'beam,' originally meaning tree trunk or wooden rod). The metaphor of light traveling like a beam or rod is ancient, originally picturing solid-looking columns of light.
When you see sunbeams pouring through clouds, you're actually watching light scatter off dust particles—ancient people called them 'god's rays' because they seemed almost solid!
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