The interaction that happens between mind and perception is regarded as sacred and natural. It is sacred because it is natural, almost mechanical. Fire burns; water creates moisture; wind blows; space accommodates. Situations that occur naturally are not regarded as threats.
From “Ground Mahamudra” in The Profound Treasury of the Ocean of Dharma, Volume Three: The Tantric Path of Indestructible Wakefulness by Chögyam Trungpa, page 594