So in your brain, there is a tiny endocrine gland called the pineal gland. The functions taught traditionally include:

-Receive information from your retina about light input (day/night)

-Regulate the sleep/wake cycle through melatonin secretion

What they don’t teach you in college:

-The pineal gland acts as an antennae and is responsible for our psionic abilities

-The pineal glad produces Dimethyltryptamine, a psychedelic substance.