Idiom that means "to understand a story better by listening to it from the beginning?"

Question

Example:

"I think I should I start my story from the beginning. That way you can [...].

Is there any idiom for that? Preferably idioms that evoke something physical, imagery.

Answer 1

I think that "to start a story at the beginning" is fairly idiomatic; it's certainly a familiar construct.

For something slightly more dynamic, you could emulate Lewis Carroll and use "Begin at the beginning."