sweet sake
醴 centers on a sweet, mild type of sake, often used in ceremonial or medicinal contexts. It refers specifically to sweet sake rather than a broader concept.
醴 combines 酉 (sake jar) with 豊, which likely contributes the sound and the idea of richness or abundance, suggesting a rich, sweet sake.
The left side 酉 is a sake jar, and the right side 豊 looks like a vessel overflowing with abundance. Picture a jar of sake so rich and sweet it overflows.
For レイ, imagine laying out a tray of sweet sake cups: lay -> レイ, and the sweet sake is ready to serve.
spring of sweet water