Psychonautics

A methodology for describing and explaining the subjective effects of altered states of consciousness, including those induced by mind altering substances:

Psychonautics

Mysticism

The pursuit of communion with, identity with, or conscious awareness of an ultimate reality, divinity, spiritual truth, or the God through direct experience, intuition, instinct or insight:

Mysticism

Psychoactive Drug

A chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in changes in perception, mood, consciousness and behavior:

Psychoactive Drug (also called Psychopharmaceutical, or Psychotropic)

LSD

A semisynthetic, psychedelic, non-addictive drug well known for its psychological effects which can include altered thinking processes, closed and open eye visuals, synaesthesia, a sense of time distortion, ego death and spiritual experiences:

LSD (lysergic acid diethylamide also known as lysergide)

Vasoconstriction

Narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels, particularly the large arteries, small arterioles and veins:

Vasoconstriction

Counterculture of the 1960s

A cultural movement that mainly developed in the United States and England and spread throughout much of the western world between 1956 and 1974:

Counterculture of the 1960s

Ego Death

An experience which purportedly reveals the illusory aspect of the ego, sometimes undergone by monks, psychologists, and others interested in exploring the depths of the mind:

Ego Death

Greek Dark Age

The period of Greek history from the presumed Dorian invasion and end of the Mycenaean Palatial civilization around 1200 BC, to the first signs of the Greek city-states in the 9th century BC:

Greek Dark Age (or Greek Dark Ages)

Thessaly

One of the 13 peripheries of Greece which was known as Aeolia before the Greek Dark Ages, and as Aeolia is appeared in Homer's Odyssey:

Thessaly

Peripheries

The official regional administrative divisions of Greece:

Peripheries
Greece consists of 13 administrative regions known as Peripheries of Greece, which are further subdivided into 3 super-prefectures and 54 prefectures or nomes. [Reference: wikipedia]