A drop of water fell into the ocean

One day a drop of water fell into the ocean. When it found itself there, it began to weep and complain.
The great ocean laughed at the drop of water. Why do you weep? it asked.”I don’t understand. When you join me, you join all ur brothers and sisters, the other drops of water of which I’m made. You become the ocean itself. If you wish to leave me, you have only to rise up on a sunbeam into the clouds. From there you can descend again, little drop of water, a blessing and a benediction to the thirsty earth.”