Sound, touch, form, taste, scent, and the objects to which they are attached these till the time of one's death are causes for the production of one's knowledge.
शब्द: स्पर्श च रूपं च रसो गन्धश्च मूर्तयः। एते ह्यामरणात् पञ्च षड्गुणा ज्ञानसिद्धये॥