स यथा वीणायै वाद्यमानायै न बाह्याञ्छब्दाञ्छक्नुयाद्ग्रहणाय ।वीणायै तु ग्रहणेन वीणावादस्य वा शब्दो ग्र्हीतः ॥बृह. ४,५.१० ॥
In plain words
and as when a lute is played one cannot lay hold of the outward sounds, but by laying hold of the lute, or of the player of the lute, the sound is laid hold of —