What causes sadness and depression?

[BlatzAdict]

I have everything going for me.
I'm on disability so I don't have to work.
I have a dog that I love.
And anthros, they are so beautiful.

But why do I feel sadness and depression?

Is there a metaphysical reason?
Or is it a chemical imbalance in the brain?

I swear, I try to feel happy or joy, and I cannot.

A far cry from where I was just a few days ago.

Sometimes it makes my heart physically hurt.

And it disturbs my sleep to where I don't even get rest.

I feel like the Logos must feel with all the sadness and despair in the world,
and having to feel all that. And the Logos never gets rest.
It has to keep the physics of the galaxy working. It can't get a wink of sleep.

Even anti-depressants don't really work.

desire causes depression.