Blavatsky
Original sense
Semi-conscious forces of nature, lacking a human ego, that inhabit the elements and the astral light. They can be used in magic, they swarm around mediums, and they are not ‘spirit guides’ or the souls of the dead. She distinguished elementals from elementaries (the decaying shells of deceased humans).
Elementals are the creatures evolved in the four kingdoms of earth, air, fire, and water, and called by the Kabalists gnomes, sylphs, salamanders, and undines.
Fairies, poltergeists, and many séance ‘controls’ she filed here. To treat them as teachers is, in her view, to take a current for a person.