" I say this—after six million years of evolution, is there anything else more in tune with the planet than the human body? We grow muscles to withstand fourteen pounds of air pressure per square inch at sea level. We develop senses to detect changes in wind patterns and know when a storm is approaching. We can hear threatening footsteps approaching and feel the stares of an angry ex-girlfriend as her eyes burn a hole in our back. We have millions of nerve endings in our skin to feel our environment. In short, we evolve. We become more in tune with the world, like birds that use the Earth’s magnetic field to help guide them on their long migration or mammals that can feel winter coming and prepare for hibernation. So when my body tells me there’s a spirit present, I trust it. "

― Zak Bagans , Dark World: Into the Shadows with the Lead Investigator of The Ghost Adventures Crew