Sediento literally means "thirsty." While it's a common word, its use in this song goes beyond simple physical thirst.
Arcángel uses it metaphorically to express a deep longing and desire for intimacy. He sings, "Estoy sediento, pero en tu oasis me meto y el cuarto inundo," implying a profound emotional and physical thirst that is quenched and overflows in the presence of his lover. This makes the word particularly evocative and sensual in context.
In "Lluvia," which means "Rain" in Spanish, Arcángel and Ricky Martin paint a picture of intense passion and deep physical connection. The song uses powerful water imagery to describe an intimate encounter. The singers express a powerful thirst that can only be quenched by their partner, who is described as an "oasis." The central metaphor of the song is wanting to see their lover's "rain" fall, a poetic way to talk about the raw, unfiltered expression of desire and pleasure.
The lyrics create a scene of overwhelming sensuality where the room is dark, but the connection is so strong it doesn't matter. The passion is described as a heat that even candles can't withstand and a connection that outshines the stars. It's a song about surrendering completely to the moment and to another person, exploring a connection that feels both physical and transcendent, taking them "from the bed to the sky."