Enséñame is the command form for "teach me" and the title of this iconic bachata song. It's a powerful and desperate plea.
In the chorus, the singer laments that his ex taught him how to love, so now she should also "enséñame a olvidar" (teach me to forget). This poetic and paradoxical request perfectly captures the feeling of being unable to move on after a painful breakup.
This song is pure bachata heartbreak! The singer is completely lost after a breakup, feeling like he's in a bad dream where he can't believe she's gone. Forgetting her feels as impossible as seeing a fish fly, or as he puts it, "como ver a un pez del mar poder volar" (like seeing a fish from the sea be able to fly). His main request, and the title of the song, is a direct plea to his ex: "Si me enseñaste a querer / También enséñame olvidar esto que siento" (If you taught me to love / also teach me to forget this that I feel). He sees her as his teacher in love, but she skipped the most important lesson: how to deal with the pain.
He gets really dramatic, wondering who invented love and complaining that they "Debió dar instrucciones pa' evitar el sufrimiento" (should have given instructions to avoid the suffering). He even admits that his dad told him not to cry over women, but for her, that's exactly what he's doing. The song ends with him desperately switching to English, pleading "Show me how to forget you, oh please mi amor", showing just how much he's willing to do to escape the pain.