Robert Downey Jr. made a memorable appearance last week on The Tonight Show Starring Jimmy Fallon. The Sherlock Holmes star was amazing in the part of a philosophical Himalayan guru, who considers Domino’s Stuffed Crust Pizza to be one of the essential elements of the universe.

Along with comedian Jimmy Fallon, “Iron Man” travelled to the Himalayas and – mentally – discussed some of the most important issues the world faces today, including body hair, sneezing and lightning! Watch the hilarious video: