Newton's Cradle

Everything has an equal and opposite force.

What you put in is what you get out.

Some people put a little in and get a little out.

Some people put a little in but with a lot of force and energy behind it, but still get a little back.

And some people put everything in with maximum force and intensity.

But that approach can be dangerous.

It risks burning out the very person doing the pushing before the return ever arrives. 

The best approach is this:

Put a lot in, consistently, with calmness and faith, and get a lot back.

That is how you achieve massive accomplishments in the long term without destroying yourself in the process.

Commit to the swing and trust the physics that you will get back what you put in.