Not that sacrifices are absolutely useless towards such an end. For a person, by relying upon both external and internal acts, and upon his own mind, can purify (them) by his own understanding. By such means, one can enjoy Infinity in the world.
बाह्ये चाभ्यन्तरे चैव कर्मणोर्मनसि स्थितः। निर्मलीकुरुते बुद्ध्या सोऽमुत्रानन्त्यमश्नुते॥