This is a verse from Srimad-Bhagavatam (3.15.43). Vidura and Maitreya discussed the pregnancy of Diti. Diti's pregnancy caused the demigods to be very much afraid, and the demigods went to see Lord Brahma. Lord Brahma explained the original incident involving the cursing of Jaya and Vijaya by the Catuh-sana Kumaras. Sometimes the Catuh-sana Kumaras went to Vaikuntha to visit Narayana, the Supreme Personality of Godhead, and once they were stopped from entering the palace at the seventh gate by two doorkeepers named Jaya and Vijaya. Due to their jealousy, Jaya and Vijaya would not allow the Kumaras entry, and consequently the Kumaras became angry and cursed Jaya and Vijaya, condemning them to take birth in a family of asuras in the material world. The omniscient Personality of Godhead could immediately understand the incident, and He came with His eternal consort the goddess of fortune. The Catuh-sana Kumaras immediately offered their obeisances unto the Lord. Simply by seeing the Lord and smelling the aroma of tulasi and saffron from His lotus feet, the Kumaras became devotees and abandoned their long-cherished impersonalism. Thus the four Kumaras were turned into Vaisnavas simply by smelling the aromatic tulasi mixed with saffron. Those who are actually on the platform of Brahman realization and who have not offended the lotus feet of Krsna can immediately become Vaisnavas simply by smelling the aroma of the Lord's lotus feet. However, those who are offenders or demons are never attracted to the Lord's personal feature, even though they may visit the Lord's temple many times. In Vrndavana we have seen many Mayavadi sannyasis who do not even come to the temple of Govindaji, Gopinatha or Madana-mohana because they think that such temples are maya. Therefore they are called Mayavadis. Sri Krsna Caitanya Mahaprabhu therefore said that the Mayavadis are the greatest offenders.