Philtos
Philtos is a fictional entity appearing in the works of author A.E. Van Vogt. It is not a species or a character in the traditional sense, but rather a concept or a type of being that plays a significant role in certain of his stories, notably "The Voyage of the Space Beagle." Philtos are described as beings that exist in a state of pure thought or consciousness, lacking any physical form. They are incredibly ancient and possess a vast understanding of the universe, having observed its evolution over eons.
The primary characteristic of Philtos is their ability to influence the minds of other beings. They can