sink into deep depression

The phrase 'hundirse en una depresión profunda' in Spanish translates to 'sink into deep depression' in English. It's a figurative phrase used to express the act of becoming extremely depressed. It conveys a sense of someone falling into a state of intense sadness, as if sinking into a deep pit or hole. This phrase is usually used to describe severe emotional states and it's often used in both casual and formal contexts.