Who can tell me the detailed introduction of the elves in Nordic mythology?

The origin of the elves is as follows in Nordic mythology: after the great god Odin killed the giant Imil, the elves were born from the giant's body, absorbed the essence of the giant and became spiritual creatures. Among them, there are elves or bright elves on the bright side of the corpse, and dark elves on the backlight side. The bright elves are bright and dazzling, very beautiful. They are usually gentle, cheerful and enthusiastic, and can communicate with trees, flowers, fish and birds, so the gods regard them as friends.

In various legends, the characteristics of elves can be summarized as follows: long life (some even think they are immortal), noble and elegant, smart and beautiful, almost integrated with nature, good at using magic and bows and arrows, living in the forest, forming a relatively loose kingdom, and being equal and friendly to each other. Elves are usually disorderly and kind. They are hostile to evil races, but they can get along well with good races (they may be slightly dissatisfied with rude and sloppy dwarves).