many stones
磊 centers on a large accumulation of stones, conveying the idea of many stones piled together.
磊 is formed by tripling the stone radical 石, visually emphasizing a heap or pile of stones.
Three stones 石 piled together: one on top, two below. Picture a rocky mound with many stones heaped up.
For ライ, imagine a pile of stones lying in the sun: lying stones -> ライ, and the heap of many stones bakes in the heat.
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