स यथा शङ्खस्य ध्मायमानस्य नबाह्याञ्शब्दाञ्शक्नुयाद्ग्रहणाय शङ्ख-स्य तु ग्रहणेन शङ्खध्मस्य वा शब्दोगृहीतः ॥ ८ ॥
In plain words
Here is another way to see it. When a conch is blown, you can't seize its scattered sounds one by one. But grasp the conch itself, or the blowing of it, and the sound is grasped whole.
Close to the Sanskrit
It is like this: as, of a conch being blown, one is not able to grasp the external sounds [separately]; but by the grasping of the conch, or of the blowing of the conch, the sound is grasped.