The veda-vadi must becomea a tattva-vadi

In the Vedas the worship of different demigods and the performance of sacrifice are certainly, mentioned, but such worship is inferior because the worshipers do not know that the ultimate goal is Visnu (na te viduh svartha-gatim hi visnum). When one comes to the platform of visnor aradhanam, or bhakti-yoga, one has attained the perfection of life. Otherwise, as indicated in Bhagavad-gita, one is not a tattva-vadi but a veda-vadi, a blind follower of the Vedic injunctions. A veda-vadi cannot be purified from material contamination unless he becomes a tattva-vadi, that is, one who knows tattva, the Absolute Truth.

Srimad Bhagavatam 5.11.2 purport