Srimad Bhagavatam Canto 07, Chapter 15, Text 56

SB 7.15.56

ya ete pitr-devanam
 ayane veda-nirmite
sastrena caksusa veda
 jana-stho ’pi na muhyati
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Even though situated in a material body, one who is fully aware of the paths known as pitr-yana and deva-yana, and who thus opens his eyes in terms of Vedic knowledge, is never bewildered in this material world.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Acaryavan puruso veda: one who is guided by the bona fide spiritual master knows everything as stated in the Vedas, which set forth the standard of infallible knowledge. As recommended in Bhagavad-gita, acaryopasanam: one must approach the acarya for real knowledge. Tad-vijñanartham sa gurum evabhigacchet: one must approach the acarya, for then one will receive perfect knowledge. When guided by the spiritual master, one attains the ultimate goal of life.
Srimad Bhagavatam Canto 07, Chapter 15, Text 55
Srimad Bhagavatam Canto 07, Chapter 15, Text 57