Depression shouts at you so loudly that it becomes a whole body experience. Maybe it’s more accurate to say that depression involves the mind and the body. It affects your thoughts and your feelings, and so your behaviour too.
It’s a silent invader but it certainly makes a lot of noise.
The main thing to remember, if you suffer from depression, is that real though it seems to you, there are other realities too. Depression gives you only one viewpoint and it imposes itself by shouting down the competition.
It’s hard to ignore depression, just as it’s hard to ignore the loudest voice in the room, but it can be done.