That drawing shows a human in critical conditions after smoking a joint.
Let me describe it in few sentence:
The man thinks the bad atoms attacts him.Desparately trying to find positive atoms he realizes his mind goes in the other space ..8D.. He loses control and he is afraid of himself.He imagines something heavy falling on him and his brain is blooding. He becomes more and more crazy and… horrific as you can see..
If you dont want to end up like this man..
Dont smoke much.. Control!
Don’t allow your mind to escape into the another reality.