The thing you can't let go of is gravity. The reality of gravity in writing. If someone says something really mean in a sitcom and the next wave isn't a reaction to the reality of that you start losing relatability. In a lot of romantic comedies they throw out the rules of life.
The Bible is one of the greatest blessings bestowed by God on the children of men. It has God for its author salvation for its end and truth without any mixture for its matter. It is all pure.