#WeSeeYou | Check Description

Many songs have hidden, reversed audio messages within them. This method of subliminal messaging is called back-masking, in which a voice message or series of messages is recorded backward onto an audio track intended to be played forward.

This is planted here on purpose to program you subconsciously, the hidden messages have a subliminal effect on the listener as the subconscious attempts to decipher the backward sounds.

You can hear clearly back-masking examples in this song 'When The Party's Over' by Billie Eilish. If this music video isn't enough to give you a depression, I am sure that listening to this song will make it twice worse.