Where does the Sun go at night?

The sun does not go anywhere.
He's out there and is always shining.
It's our world that goes around...and the Light appears to go down.
Think about it. Just like in everyday life:

It's not because we can't see or feel the light that there is no light anymore.

The sun will always shine. It's his nature to shine, and it will take billions of years to fully deplete it.
When you feel dazed and confused, when your world is spinning like a carousel ! Still the light continuously shines on you, be grateful for that. Ask yourself : witch part of my life is facing the Sun? There is always one side in sunrise. If in the rest of your world it's night, keep on "turning" : bright sunrise is just on the exact opposite side.

After a sunset must come a sunrise.
Days and nights cycle just goes on and on. Always remember the Sun is shining! Xoxo