Mbh 14.34.4

"'"The Brahmana said, 'He is without symbols, and without qualities. Nothing exists that may be regarded as his cause. I shall, however, tell thee the means by which he can be seized or not. A good means may be found; viz., perception of hearing, etc. as flowers are perceived by bees. That means consists of an understanding cleansed by action. Those whose understandings have not been so cleansed, regard that entity, through their own ignorance, as invested with the properties of knowledge and others.[97] It is not laid down that this should be done, of that this should not be done, in the rules for achieving Emancipation,--those, that is, in which a knowledge of the soul arises only in him who sees and hears.[98] One should comprehend as many parts, unmanifest and manifest by hundreds and thousands, as one is capable of comprehending here. Indeed, one should comprehend diverse objects of diverse import, and all objects of direct perception. Then will come, from practice (of contemplation and self-restraint, etc.), that above which nothing exists.'"[99]