It is the simple story of a stonecutter. How can a stonecutter open up a gigantic boulder? He begins by using a huge hammer with which he hit the granite rock with all the force he can. The first time he hits it, he doesn't make a notch, he doesn't take a piece of it, nothing. Remove the hammer and hit it again and again, 100, 200, 300 times, without producing a single crack.
After so much effort, the rock doesn't show even the slightest crack, but he keeps hitting it. Sometimes people walk past him and laugh at his persistence when it's clear that his actions aren't having any effect on him. But a stonecutter is very smart. You know that just because you don't see immediate results from the actions you take, that doesn't mean that no progress is being made. You keep hitting the rock at different points, over and over again, and at some point, maybe when you hit 500 or 700 hits, or the one that hits 1,004, the rock not only splinters, but literally splits open in half. Has it been that one and last blow that has opened the stone? Of course not.

It has been the constant and continuous pressure that he has applied to the challenge that he faced.