Animals are caught by employing animals as the agents. Birds are caught by employing birds as the agents. Elephants are taken by employing elephants. In this way the Soul may be apprehended by the principle of Knowledge.
मृगैर्मुगाणां ग्रहणं पक्षिणां पक्षिभिर्यथा। गजानां च गजैरेव ज्ञेयं ज्ञानेन गृह्यते॥