In the early days when the world was new, spirits and ghosts lurked everywhere. They lived in gloomy caves, they hid in anthills and tree trunks they frolicked in nooks and corners under the houses. In the dark, sometimes their tiny voices could be heard dimly, or their ghostly presence be felt. But they were never seen.
It was during these days of phantoms and unseen spirits that a young and beautiful girl lived. Her name was Raya, and she was a girl bold and daring. She was never afraid of spirits. She would walk in the shadowy forests, bringing along a lighted candle.
Then she would tiptoe into dark and dirty caves, searching the place for spirits. Raya only felt or heard them never having seen them. But Raya always felt the presence of one kind spirit, whenever she walked in the forest the spirit was with her at all times.
One day she heard someone call her name, and she looked up to see a young handsome man. She asked him who he was, and he replied that his name was Sag-in, and he was the spirit who followed her around, and even confessed that he had fallen in love with a mortal.
They married had a child and lived happily, but Sag-in knew that
his time on earth was short for he was a spirit-man, and would have to
return to the spirit world soon. When he knew his time had come, he called
Raya and explained why he had to leave. As he was slowly vanishing, he
told Raya that he would leave her a part of him. Raya looked down and saw
a bleeding heart on
the ground. She took the heart and planted it. She watched it night and day. A plant with long green leaves sprouted from the grave.
One day, the tree bore fruit shaped like a heart. She touched the fruit and caressed it. Thinking could this be Sag-in's heart? Slowly the fruit opened , Long golden fruits sprouted from it. Raya picked one, peeled it and bit into it. Then, she heard Sag-in's voice floating in the air:
"Yes, Raya, it is my heart. I have reappeared to show you that I will never forsake you and our child. Take care of this plant, and it will take care of you in return. It's trunk and leaves will give you shelter and clothing. The heart and fruits will be your food. And when you sleep at night, I will stand and watch by your window. I will stay by your side forever!"
source: Mystica [ link