"the fool who has no discrimination thinks that was really is not, is . The sun creates the clouds and then the clouds hide the sun,so egotism takes rise from the Atman and then veils it.
...And it becomes dark,there comes a heavy cold wind and make it worse so to the fool this becomes a cause of various sufferings
The Atman is the real life,whereas the body's life is borrowed" (Vivekachudamani/Adi Shankaracharya)