No Se Va by Morat is a song about the difficulty of forgetting a past love. The lyrics express the singer's struggle to move on, despite the pain of seeing the other person's photo and not being able to talk to them. The chorus emphasizes the idea that the memory of the past love will not go away, and the singer pleads for them to stay one more time, for the night, after twelve o'clock, and even for life. The singer's heart will not forget a love like this, and it will not go away.