I learned before you were born that when someone wants to see me in a hurry, the urgency is almost never mutual. - Robert A. Heinlein

Heinlein's Rules for Writers

Rule One: You Must Write
Rule Two: Finish What Your Start
Rule Three: You Must Refrain From Rewriting, Except to Editorial Order
Rule Four: You Must Put Your Story on the Market
Rule Five: You Must Keep it on the Market until it has Sold

What is a “concrete” word? It is a spell-symbol used to tag something you can point to and thereby agree on, e. g., “cat,” “sailboat,” “ice-skating”—agree with such certainty that when you say “sailboat’’ there is no chance whatever that I will think you mean a furry quadruped with retractile claws.
With the spell symbol “God” there is no way to achieve such agreement because there is nothing to point to.

A half hour later I had a headache and a plan, but it called for an accomplice. The plan, I mean. The headache I could manage alone.