A very poor man lived with his wife whose hair was so long it touched the waist. One day the wife asked her husband to buy her a comb for her long hair so that it can continue to grow well and to be well groomed.
The man felt sorry and said he didn't have money even to fix the strap of his watch which had just broken. The wife did not insist. On his way to work the man passed by a watch shop, sold his damaged watch at a low price and went to buy a comb for his wife.
He came back home in the evening with a comb in his hand ready to give to his wife. He was surprised to see his wife with very short hair. She had cut and sold her hair and bought a brand new watch for her husband.
Tears flowed simultaneously from their eyes, not for the futility of their actions, but for the reciprocity of their love. Love is when the other person's happiness is more important than your own.
Give love and show love where it matters and let it be the God-centered love.
Source: The Gift of Magi