Myths sometimes explain natural events. Tales of Zeus explained thunder and lightning. This myth explains the first tears:
The First Tears - An Inuit Myth
retold by S. E. Schlosser
Once long ago, Man went hunting along the water’s edge for seals. To Man’s delight, many seals were crowded together along the seashore. He would certainly bring home a great feast for Woman and Son. He crept cautiously towards the seals. The seals grew restless. Man slowed down. Suddenly, the seals began to slip into the water. Man was frantic. His feast was getting away.
Then Man saw a single seal towards the back of the group. It was not moving as quickly as the others. Ah! Here was his prize. He imagined the pride on Woman’s face, the joy in Son’s eyes. Their bellies would be filled for many days from such a seal.
Man crept towards the last seal. It did not see him, or so Man thought. Suddenly, it sprang away and slipped into the water. Man rose to his feet. He was filled with a strange emotion. He felt water begin to drip from his eyes. He touched his eyes and tasted the drops. Yes, they tasted like salty water. Strange choking sounds were coming from his mouth and chest.
Son heard the cries of Man and called Woman. They ran to the seashore to find out what was wrong with Man. Woman and Son were alarmed to see water flowing out of Man’s eyes.
Man told them about the shore filled with seals. He told how he had hunted them, and how every seal had escaped his knife. As he spoke, water began to flow from the eyes of Woman and Son, and they cried with Man. In this way, people first learned to weep.
(special thanks to americanfolklore.net!)