You are the father and the mother and the eternal preceptor of the universe. We know not who is that god or that Pitri to whom you are sacrificing to-day.
पिता माता च सर्वस्य जगतः शाश्वतो गुरुः। कं त्वद्य यजसे देवं पितरं कं न विद्महे॥