The concept of satori & advaita vedanta: stillness & insight

Satori is the concept in Japanese buddhism that suggests a profound, sudden insight. It is cultivated out of mental silence and concentration, but is not simply the same as them. Out of stillness, a looking or noticing emerges. The same scheme is present in advaita vedanta. Mental purity and then discernment or looking happens -- and that results in true knowledge. The fruit of knowledge is further silence.