Also, hearing talk of light, ignorant people think of it as like the light of fireflies, like the light of lamps, like the light of sun and moon or the luster of gold and jewels, groping for comparisons; trying to see shining radiance, they focus on the mind and figure inside the intellect, aiming for it as a realm of utter emptiness and total silence...Such people are nothing more than rice bags sleeping with their eyes open.