Krishna says, "This form of mine has not been seen before by anyone else than you (11.47). Neither by study of the Vedas, nor by 𝙮𝙖𝙜𝙣𝙖𝙨, nor by gifts, nor by rituals, nor by severe austerities can I be seen in such a form (11.48). Be free from fear and with a cheerful heart, behold Me once again in My personal form" (11.49).
Krishna comes to his original form (11.50) and Arjun gets resorted to his nature (11.51). Krishna says, "Very hard to see this form of mine and even gods ever long to behold this form (11.52). Neither by the study of the Vedas, nor by penance, charity, or fire sacrifices can I be seen like this" (11.53).
Our general belief is that charity gives us punya (virtue). But Krishna says charity can't help us see his 𝙑𝙞𝙨𝙝𝙬𝙖𝙧𝙤𝙤𝙥𝙖𝙢 . When our charity is driven by 𝙖𝒉𝙖𝒏𝙠𝒂𝙖𝒓 , it then becomes a business of giving something of ours to get something (𝙋𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖) . This barter can't take us to 𝙋𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 as HE can't be bought.
Immediately, Krishna gives a positive path and says, "But by a single pointed devotion I may be seen like this (11.54) and He who performs actions for me, with me as Supreme is devoted to me, free from attachment, without enmity towards any being -he reaches Me" (11.55).
Being free from attachment doesn't mean detachment. It is neither aversion nor craving. Earlier also, Krishna advised us to drop hatred but not 𝙆𝙖𝙧𝙢𝙖𝙨 . The key is dropping enmity towards any being. Hatred is like 𝙖𝒉𝙖𝒏𝙠𝒂𝙖𝒓 and both have many shapes, faces, forms and manifestations making it difficult for us to identify. Hatred is like a poison we carry that would ultimately hurt and damage us. In a sense, the hatred stands between our state of joy ( 𝙢𝙤𝙠𝙨𝙝𝙖) and our misery.