Srimad-Bhagavatam: Canto 12 - Chapter 1 - Verse 2-3
Sanskrit:
तान्त्रिका: परिचर्यायां केवलस्य श्रिय: पते: ।अङ्गोपाङ्गायुधाकल्पं कल्पयन्ति यथा च यै: ॥ २ ॥तन्नो वर्णय भद्रं ते क्रियायोगं बुभुत्सताम् ।येन क्रियानैपुणेन मर्त्यो यायादमर्त्यताम् ॥ ३ ॥
ITRANS:
tāntrikāḥ paricaryāyāṁkevalasya śriyaḥ pateḥaṅgopāṅgāyudhākalpaṁkalpayanti yathā ca yaiḥ
Translation:
All good fortune to you! Please explain to us, who are very eager to learn, the process of kriyā-yoga practiced through regulated worship of the transcendental Lord, the husband of the goddess of fortune. Please also explain how the Lord’s devotees conceive of His limbs, associates, weapons and ornaments in terms of particular material representations. By expertly worshiping the Supreme Lord, a mortal can attain immortality.