Grof identifies the major types of transpersonal experiences to include the following:²⁵

I.

Transcendence of Spatial Boundaries, which suggests that boundaries between the individual and the rest of the universe are not absolute and include the following examples:

(a)

Experience of Dual Unity, characterized by the loosening and melting of boundaries of the body ego, along with the sense of merging with another person into a state of unity and oneness. This would include but not be limited to a sense of fusion with a sexual partner.

(b)

Identification With Other Persons, during which one has the perception of taking on the body image, physical sensations, emotions, attitudes, memories and mannerisms of another individual from the past or present.

(c)

Group Identification and Group Consciousness, during which the subject has a sense of becoming an entire group of people who share some racial, cultural, national or other ideological characteristics.

(d)

Identification With Animals, during which one experiences the body image, physiological sensations, instinctual drives, emotions and unique perception of the environment.

(e)

Identification With Plants and Botanical Processes, during which the individual has a convinced sense of being a particular plant, parts of plants or the physiological and biochemical processes in them at a cellular or molecular level.

(f)

Oneness With Life and All Creation, during which one's consciousness expands to encompass the totality of life on this planet including all of humanity as well as all other life forms.

(g)

Experience of Inanimate Matter and Inorganic Processes, which include the experiential identification with macroscopic and microscopic phenomena. One perceives what it would be like to be a river, ocean, fire, earthquake, quartz crystal, chemical element, molecule, electromagnetic force, or any other physical process.

(h)

Planetary Consciousness, during which a subject's consciousness expands to encompass all living as well as non-living aspects of the planet, such as geological, biological, psychological, cultural and technological phenomena. This would correspond to the experiential counterpart of the Gaia hypothesis.

(i)

Extraterrestrial Experiences, where one's consciousness extends to celestial bodies, other parts of the universe and astronomical processes beyond our planet. This can range from witnessing various events to actually experiencing what it feels like to be a star, supernova or pass through a black hole.

(j)

Identification With the Entire Physical Universe, during which one has a complete and total simultaneous experience of everything there is. One has a sense of cosmic or divine consciousness.

(k)

Various psychic phenomena, including out-of-body experiences, astral projection, clairvoyance, telepathy, etc.