Los Angeles - Michelle Rodriguez felt like an "animal" after Paul Walker's death.
The Furious 7 star struggled to cope with the loss of her co-star - who tragically died in November 2013 from injuries sustained in a car crash - and admits she almost felt "jealous" that he had gone first.
Speaking in a clip for documentary The Reality of Truth, she said: "I have to say, you know, when I lost Paul, I went through about a year of just being an animal. Like, what could I do, physically, to just get my mind off of existentialism? Get my mind off of how transient life is and how we come here and can just disappear at any moment. How could I get my mind off that?
"I did everything I could possibly do to hide from myself and I'll tell you that my Ayahuasca trip made me sad that he left me here. It wasn't a sadness that he's gone, it's more like a jealousy that he's there first."
The Reality of Truth, directed by Mike "Zappy" Zapolin and Lauren Levy, features Rodriguez, Zapolin, and others, guided by Deepak Chopra, exploring everything from meditation to plants on their international quest to transcend the boundaries of the human mind.
In the doccie, Rodriguez is shown using the plant Ayanhuasca in Peru and saying, "It brought the destruction of everything I've ever known...I had an awakening."
Watch the trailer here: