“There is a place below called the Nether World. You enter this place when you “die” or when you are in a city (away from nature). You enter via a special entrance. Once down there, you cannot leave unless a substitute is found to take your place. You will know that you have entered the Nether World because:
- noise will irritate you
- you will feel vulnerable and will have a hard time defending or protecting yourself
- you will feel dirty or bad
- you will not behave in a normal manner towards your family
- you will feel stuck
- not many things will appear to be good.
These six conditions exist in the Nether World and you must accept them. If you don’t, you will be held there by the inhabitants of the world until a god intervenes on your behalf.
After descending into the Nether World, you will have to cross a river with the help of a boatman. Then, you will judge yourself. If the judgement is positive, you will live a life of happiness.
The Nether World is a dark place, and living there is depressing.”
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The above description was written over 5000 years ago. It is part of the Sumerian Texts, one of the oldest texts found on earth. It describes a place they call the Nether World.
I was surprised to notice that it was quite an accurate description of what today we call Depression.