The working of Guru’s Grace is like the oil in a lamp. The wick, which is lit without oil in the lamp is quickly burnt out and the light, too, dies out. But if oil is poured into the lamp it not only protects the wick from burning out but also helps the lamp burn continuously.
Likewise, one who does not enjoy the Grace of the Guru suffers from his ‘prarabda’ (the effect of his past merits and demerits). He is like the wick in a lamp bereft of oil. ‘Prarabda’ shudders at the prospect of even approaching a ‘jiva’ who enjoys the Grace of the Guru.