The gateway leading departed souls into the Underworld is named "Shisei Gokumon" and is flanked by the guardians, Gozu in black and Mezu in white. Their occasional meeting occurs only when the gate is slightly open. "I desire to touch the dark, bull-like demon." "I fear defiling the pure, white horse-like demon." Although they share affection, the two beings can never connect. Their close proximity is both disappointing and thrilling. Had they been human, their emotion would resemble "love."