Say Say, Think Think only, cannot meh ?

Very often, we hear people say "say say only'" or "think think only, cannot meh ?'". Well have you come across in your mind whatever you say or whatever you think can be sensed and responsed by water content in our body. And do you remember 75% of our body is make of water substance? If you don't watch your words, somebody will watch over you, LOL.

One day, Pastor Kong gave a leisure in church and this is what he said :