single eye, n.All

Single eye (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the undivided mind that alone can understand fear, pain, sorrow and boredom — the eye that fills the whole body with light.