the phenomena they can identify with can range from a single atom to various materials such as diamond, granite, or gold. Sometimes the consciousness of particularly stable and durable substances can be experienced as involving an element of sacredness.
Grof argues that in transpersonal LSD states, identification with granite exemplifies the discovery of sacredness within inorganic matter’s very stability and durability.
, Varieties of Transpersonal Experiences: Observations from LSD Psychotherapy, 1972thesis