Please speak about how one engages in the devotional service of the Supreme Lord, if you consider me capable of properly hearing these topics. When a living entity offers loving service to the Supreme Lord, the Lord is immediately satisfied, and in return He will give even His own self to the surrendered soul.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
धर्मान् भागवतान् ब्रूत यदि नः श्रुतये क्षमम् । यैः प्रसन्नः प्रपन्नाय दास्यत्यात्मानमप्यजः
dharmān bhāgavatān brūta yadi naḥ śrutaye kṣamam | yaiḥ prasannaḥ prapannāya dāsyatyātmānamapyajaḥ
SB 11.2.31