Meaning
Arjuna spoke
O Keshava! What are the marks of a person whose intelligence has stabilized in the divine consciousness? How does he speak, sit, and walk? (2:54)
Sanskrit
अर्जुन उवाच
स्थितप्रज्ञस्य का भाषा समाधिस्थस्य केशव ।
स्थितधीः किं प्रभाषेत किमासीत व्रजेत किम्॥
Word-by-word
स्थित-प्रज्ञस्य का भाषा समाधिस्थस्य, केशव?
स्थित-धीः किम् प्रभाषेत, किम् आसीत्, व्रजेत किम्?
Commentary
Keshava" is another name for Sri Krishna. According to the Padma Purana, this name refers to Krishna's long, beautiful, unshorn hair. It's also one of the many names of Bhagawān Vishnu.