It is clearly mentioned in this sixth mantra that one should "observe," or systematically see. This means that one must follow the previous ācāryas, the perfected teachers. Anupaśyati is the exact Sanskrit word used in this connection. Anu means "to follow," and paśyati means "to observe." Thus the word anupaśyati means that one should not see things as he does with the naked eye but should follow the previous ācāryas. Due to material defects, the naked eye cannot see anything properly. One cannot see properly unless one has heard from a superior source, and the highest source is the Vedic wisdom, which is spoken by the Lord Himself. Vedic truths are coming in disciplic succession from the Lord to Brahmā, from Brahmā to Nārada, from Nārada to Vyāsa, and from Vyāsa to many of his disciples. Formerly there was no need to record the messages of the Vedas, because people in earlier ages were more intelligent and had sharper memories. They could follow the instructions simply by hearing once from the mouth of a bona fide spiritual master.