It is in obedience to his advice that action afterwards originates. The instructor, the apprehender, the hearer, and the enemy, are placed within the heart,
तस्य चानुमते कर्म ततः पश्चात् प्रवर्तते। गुरुर्बोद्धा च श्रोता च द्वेष्टा च हृदि निःसृतः॥