“In the Shrimad-Bhagavatam it is stated that even the lowest, who are called chandalas (dog-eaters), can be elevated by association with a pure devotee. Therefore devotional service and guidance of a pure devotee are so strong that there is no discrimination between the lower and higher classes of men; anyone can take to it.” (Shrila Prabhupada, Bhagavad-gita, 9.32 Purport)