Sri-bhagavan uvaca
etam vibhutim yogam ca
mama yo vetti tattvatah
so’ vikalpena yogena
yujyate natra samsayah
mama yo vetti tattvatah
so’ vikalpena yogena
yujyate natra samsayah
(The Opulence of the Absolute, Text 07 Chapter 10)
Meaning: One who is factually convinced of this opulence and mystic power of Mine engages in unalloyed devotional service; of this there is no doubt.
Bhagavad Gita: Engage in unalloyed devotional service (The Opulence of the Absolute, Text 07 Chapter 10)