Bäumt es sich auf is a vivid and somewhat dramatic German idiom that literally translates to "it rears up" (like a horse) or "it rebels". It's not an everyday phrase, making it quite memorable.
In the song, it's used to describe how life suddenly takes an unexpected and difficult turn: "plötzlich bäumt es sich auf und verstummt" (suddenly it rears up and falls silent). This powerful imagery conveys a sense of life abruptly becoming overwhelming and then ceasing, perfectly capturing the shock and grief of loss.
Ina Müller's song "Pläne" (which means Plans) is a powerful and emotional journey through the shock of losing a close friend. The singer describes a person who has been in her life for as long as she can remember, a loyal friend with whom she shared laughter, dreams, and gossip.
Suddenly, everything changes. The singer finds herself at a "black ritual," likely a funeral, overwhelmed with grief, anger, and even shame for having told her friend that everything would be okay. The song captures the painful feeling of how life was just moving along normally with plans, goals, and appointments, only to be abruptly silenced. It's a heartbreaking look at how the world keeps moving on, even when your own world has stopped, and how a sudden loss forces you to grow up all over again.