When you have the Holy Spirit (the water in this explanation) and have in you a while, the devil comes (the bad coloring) He is very bad and red. He tries to poison you he is bad as dread.
A cup is a cup without water. I am the water you are the cup. The cup stands for us without the Holy Spirit (the water). I fill you up with water your as happy as can be. Those who don’t get filled up, they need me.