"Love is the energizing elixir of the universe, the cause and effect of all harmonies" (Rumi). Elixir of life symbol which represents eternal life. Perfect for Love's Alchemy because it's an actual alchemy symbol!
Andreas Friedrich - Emblemata Nova, First developed in the century, emblems consist of three parts: a symbolic picture (pictura) with a motto or title (inscriptio) and an explanatory poem or epigram (subscriptio). The purpose of the emblem.