This comment is like the zen version of "simpsons did it!"

It would be if they hadn’t asked that question at the end, which is a fair question.

Well, Zen tries to build a whole religion around the idea, losing the spirit of simple easily comprehensible advice that can be expressed in a single sentence.

So one answer to “what new” could be “delivering the advice without unnecessary complication”. Although I can’t really tell if the advice above covers the whole of Zen, which is part of the issue.

Zen doesn't have to be a religion, it can be whatever you want it to be.

That literally makes the term meaningless.

Welcome to Zen.

Does it need to be new?

There are many excellent books written on Zen. If this book does not add anything new, then is there a point to reading it?