I offer my respectful obeisances unto the Supreme, the Supersoul, the master of all mystic yoga, who is seen in the core of the heart by perfect mystics when they are completely purified and freed from the reactions of fruitive activity by practicing bhakti-yoga.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
योगरन्धितकर्माणो हृदि योगविभाविते । योगिनो यं प्रपश्यन्ति योगेशं तं नतोऽस्म्यहम्
yogarandhitakarmāṇo hṛdi yogavibhāvite | yogino yaṃ prapaśyanti yogeśaṃ taṃ nato'smyaham
SB 8.3.27