Sirius its constellation, Canis Major (Greater Dog). The heliacal rising of Sirius marked the flooding of the Nile in Ancient Egypt and the "dog days" of summer for the ancient Greeks, while to the Polynesians in the Southern Hemisphere the star marked winter and was an important reference for their navigation around the Pacific Ocean. The brightest star in the night sky, Sirius is recorded in the earliest astronomical records. Its displacement from the ecliptic causes this heliacal rising to be remarkably regular compared to other stars, with a period of almost exactly 365.25 days holding it constant relative to the
Cosmic Trigger I: The Final Secret of the Illuminati conceptualized as being a definite, unchanging "'thing") is mutable and subjective to the observer. Wilson employs several models for his experiences, such as the interstellar ESP connection, during which time Wilson enters what he refers to as a 'reality tunnel', in which he claims to communicate telepathically with extraterrestrials residing in the Sirius star system. Wilson states however, that this belief system does not necessarily have any objective truth, which highlights his main point: that all such models—whether spiritual or scientific—are just that: models, or maps, of the world, and they should not be confused with an objective, permanent reality.