धर्मानन्यान्परित्यज्य मामेकं भज विश्वसन् ।
यादृशी यादृशी श्रद्धा सिद्धिर्भवति तादृशी ॥
dharmān anyān parityajya mām ekaṁ bhaja viśvasan |
yādṛśī yādṛśī śraddhā siddhir bhavati tādṛśī ||
(Brahma-saṁhitā: 5.61)
“Completely relinquishing other dharmas, worship me alone, fostering conviction. Howsoever is the śraddhā [one fosters], so is the attainment (siddhi) [one achieves].”