At the moment, devotees in the Western countries are being attracted by Krsna consciousness and becoming uninterested in materialistic activities, and therefore people are trying to oppose this movement. But they cannot possibly check this movement or stop the activities of the devotees in Europe and America by their artificial impositions. Here the words srotranjalir upasprsya indicate that simply by hearing the transcendental activities of the Lord the devotees become so pure that they are immediately immune to the contamination of materialistic fruitive activities. Anyabhilasita-sunyam [Bhakti-rasamrta-sindhu 1.1.11] Materialistic activities are unnecessary for the soul, and therefore the devotees are freed from such activities. The devotees are situated in liberation (brahma-bhuyaya kalpate [Bg. 14.26]), and therefore they cannot be called back to their material homes and materialistic activities.

Srila Prabhupada SB 9.24.62, purport