Apsaras

These predominantly female fairies are also known as sky dancers, and are much like Western angels. They bless men kindly at important stages of their lives, and are often seen at weddings. To those dying on battlefields, they appear as beautiful courtesans, offering delight in the world to come.

They are said to live in fig trees, and sometimes (though very seldom) appear to scholars or scientists, seduce them and exhaust them, making sure that man does not venture into areas that the spirit world deems unfit for them.