What is a psychonaut exactly? According to clinical psychiatrist Jan Dirk Blom, psychonautics is "the exploration of the psyche by means of techniques such as lucid dreaming, brainwave entrainment, sensory deprivation, and the use of hallucinogenics or entheogens," and a psychonaut is someone who "seeks to investigate their mind using intentionally induced altered states of consciousness."

The controversial new documentary "The Reality of Truth" asks viewers to examine the often taboo relationship between spirituality, religion, and psychedelics. In the film, Mike "Zappy" Zapolin travels the world interviewing thought leaders with help from co-host actress and activist Michelle Rodriguez.

“At the end of the day, whatever your ‘true reality' is going to be, I’m sure it will be mostly inspired by whatever you come in counter with in your life," Rodriguez said. "We're all transmitters. You can shift your frequency," she added.

Administering psychedelic drugs can often lead to mystical experiences, transcendence, insights, awe and ultimately, positivity. But this is nothing new. Spiritual pursuits and psychedelic drugs have been associated with one another for thousands of years. For example, "psychedelic plants, such as psilocybin mushrooms, peyote, and ayahuasca have long been used in shamanic traditions in the Americas,” according to Lerner & Lyvers’s Values and Beliefs of Psychedelic Drug Users: A Cross-Cultural Study.

Featuring a diverse group of celebrities such as Deepak Chopra, Peter Coyote, Ram Dass, Serena Dyer, Joel Osteen, Marianne Williamson, David Lynch, among many others, the film debunks many myths about spirituality, and specifically hallucinogenic spirituality around the world. "The Reality of Truth" premieres July 19, 2016.