Coincidir means 'to coincide' or 'to meet by chance', often implying a fortunate or destined encounter. It's a beautiful word that goes beyond a simple 'to meet' (conocer).
In the song, the lyrics "Tanta gente, tanto mundo, tanta opción y coincidir" (So many people, so much world, so many options and to coincide) highlight the specialness of their meeting. It suggests that out of countless possibilities, their paths aligned, making their connection feel unique and meaningful. This poetic usage makes it a truly enticing word to explore.
This one starts as a thank-you note and ends as a plea. The singer lists everything the other person taught him: how to love her, how to kiss her, how to dress, how to seduce her, how to be stronger, how to trust himself. He still cannot get over the odds of it, tanta gente, tanto mundo, tanta opción and somehow the two of them met anyway, and he swears even the flowers smile just from hearing about her.
Then one line flips the whole song. Having been taught so well, he asks for one more lesson: tú me enseñaste a amar, ahora enséñame a olvidar. Now his own skin misses her and does not know how to behave without her. For a learner this is a generous song, because nearly every line is built on the same frame, cómo plus an infinitive, repeated until the pattern sticks. Warm and unhurried, and quietly wrecked by the end.