Meaning: This sentence describes how the sweetness of chocolate cake can melt on the tongue and create a pleasurable sensation.
Choice of Words: "Sweetness" is the quality of being sweet, or having a pleasant taste. "Melts" is to change from a solid to a liquid state. "Tongue" is the muscular organ in the mouth used for tasting, speaking, and swallowing. "Embrace" is to hold someone or something closely in one's arms.