7.3 Among thousands of men a rare one endeavours for perfection. Even of the perfected ones who are diligent, one perchance knows Me in truth.
English Translation Of Sri Shankaracharya's Sanskrit Commentary By Swami Gambirananda
7.3 Sahasresu manusyanam, among thousands, among a multitude of men; kascit, a rare one; yatati, endeavours; siddhaye, for perfection. [For perfection: for the rise of Knowledge through the purification of the mind.] Siddhanam api, even of the perfected one; yatatam, who are diligent-they (those diligent ones themselves) being (considered to be) verily perfect because they are striving for Liberation; of them-; kascit, one perchance, indeed; vetti, knows; mam, Me; tattvatah, in truth.
Having drawn the attention of the hearer by arousing interest, the Lord says:
