contemplation that the Self is not different from Brahman
भक्तिः इतिbhaktiḥ iti
is bhakti
उक्त–साधन–सम्पन्नःukta–sādhana–sampannaḥ
A person equipped with the above means
तत्त्व–जिज्ञासुःtattva–jijñāsuḥ
the seeker of truth
आत्मनःātmanaḥ
of the the Self
उपसीदेत्upasīdet
has to approach
गुरुंguruṃ
a teacher
प्राज्ञंprājñaṃ
a wise one
यस्मात्yasmāt
because of whom
बन्ध–विमोक्षणम्bandha–vimokṣaṇam
release from bondage
Translation
Others say that devotion is contemplation on the nature of Atman and application to oneself. Equipped with the above means (mentioned in verse 19), the seeker in the quest of atman has to approach a realised guru, by whom he would attain freedom from bondage.
Annotation
The earlier verse talked of one’s own nature. The present verse introduces the word ‘Atman’ and thus implies to the equation of the seeker with Brahman (Jagadguru). Devotion which initially starts with an idea of duality matures into non–dual devotion in which the devotee realises oneness with the Supreme.