SB 11.15.2
sri-uddhava uvaca
kaya dharanaya ka svit
katham va siddhir acyuta
kati va siddhayo bruhi
yoginam siddhi-do bhavan
Translation:
Sri Uddhava said: My dear Lord Acyuta, by what process can mystic perfection be achieved, and what is the nature of such perfection? How many mystic perfections are there? Please explain these things to me. Indeed, You are the bestower of all mystic perfections.