Sengcan said this quote
“ If the eye never sleeps,all dreams will naturally cease.If the mind makes no discriminations, the ten thousand things are as they are,of single essence.To understand the mystery of this One essence is to be released from all entanglements.When all things are seen equallythe timeless Self-essence is reached. No comparisons or analogies are possiblein this causeless, relationless state.Consider movement stationaryand the stationary in motion,both movement and rest disappear.When such dualities cease to existOneness itself cannot exist. To this ultimate finalityno law or description applies. ”