Srimad Bhagavadgita Sadhaka Sanjivani -Swami Ramsukhdas
Appendix:—Where the Lord has mentioned the Supreme State of Knowledge (Jnana), there by knowledge, a striver knows Him in essence (tattva) and merges unto Him—thus there are two attainments; but here by devotion a striver knows him in essence, sees Him and merges into Him—there are three attainments. By devotion God can also be seen—this is the special feature of devotion, while having attained even the Supreme State of Knowledge, God is not seen. Therefore there is special glory of devotion. By devotion God in His entire form is attained.