If you observe nature at work, you will see that least effort is expended. Grass doesn’t try to grow, it just grows. Fish don’t try to swim, they just swim. Flowers don’t try to bloom, they bloom. Birds don’t try to fly, they fly. This is their intrinsic nature. The earth doesn’t try to spin on its own axis; it is in its very nature to spin with dizzying speed and to hurtle through space. It is in the very nature of babies to be blissful. It is in the nature of the sun to shine and of the stars to glitter and sparkle.