Bhakti means when he realizes, God realization, then naturally he becomes unattached to material activities. That is the test. Not that simply by having tilaka or kanthi, one becomes a devotee. How much he is detached to the material attraction, that is the test. That is the test. Vasudeve bhagavati bhakti-yogah prayojitah janayaty asu vairagyam [SB 1.2.7]. If he has no vairagya, if he is still attached to material things, his devotion is not yet…

From Srila Prabhupada’s lecture on Srimad-Bhagavatam 1.2.7 — November 13, 1973, Delhi