Notice: This article uses content directly taken from the Possession article at the Vampire Diaries Wiki, and is licensed under the Creative Commons Attribution-Share Alike License.
Possession is the ability of witches, passengers, spirits, ghosts, and oni to insert one's spirit into another being's form and take control of their body and mind. This power can be used to grant the possessor the motor functions, senses and supernatural abilities, if any, of the host body and is commonly achieved through magical means; however, oni can achieve this through mere touch.
Possession is different from Mind Compulsion and mind control, in that the being's spirit or life essence has to metaphysically enter the body of another being in order to control the body from within.