स यथा दुन्दुभेर्हन्यमानस्य न बाह्याञ्छब्दाञ्छक्नुयाद्ग्रहणाय, दुन्दुभेस्तु ग्रहणेन—दुन्दुभ्याघातस्य वा—शब्द्ō गृहीतः ॥ ७ ॥
sa yathā dundubherhanyamānasya na bāhyāñchabdāñchaknuyādgrahaṇāya, dundubhestu grahaṇena—dundubhyāghātasya vā—śabdō gṛhītaḥ || 7 ||
7. As when a drum is beaten one cannot distinguish its various particular notes, but they are included in the general note of the drum or in the general sound produced by different kinds of strokes.
But how can we know that all this is the Self now? Because of the inherence of Pure Intelligence in everything, we conclude that everything is That. An illustration is being given: We see in life that if a thing cannot be perceived apart from something else, the latter is the essence of that thing. As, for instance, when a drum or the like is beaten with a stick etc., one cannot distinguish its various particular notes from the general note of the drum, but they are included in, taken as modifications of, the general note: We say these are all notes of the drum, having no existence apart from the general note of the drum. Or the particular notes produced by different kinds of strokes are included in the general sound produced by those strokes: They cannot. be perceived as distinct notes, having no separate existence. Similarly nothing particular is perceived in the waking and dream states apart from Pure Intelligence. Therefore those things should be considered non-existent apart from Pure Intelligence.