For the construction of a temple, a sculptor bought a load of rocks. He selected three of them and asked them who will accept the pain ? The first one denied bear the pain and the sculptor used it for footsteps. The second one confessed to bear a little amount of pain and he selected that rock for thrashing the coconuts and placed it in the "praharam" of the temple. And the third one said, I can tolerate the pain up to your satisfaction.
The sculptor selected the third one and began his work. Everyday, he used to design the rock with his "chisel". Whenever the sculptor was modelling the third rock with his chisel, the other two rocks were giggling and made fun of the third rock. At last, the sculptor produced a beautiful sculpture out of the third rock.
He gave an excellent finishing, and she is the "Goddess Durga Matha" and placed her in the "Gharbhagraha" of the temple and she receives the utmost respect of all. This made the other two, to realize, "NO PAIN, NO GAIN"