This completes the picture that 12.3 began. The seekers of the formless Brahman restrain all their senses, maintain equal vision everywhere, and devote themselves to the welfare of every living being. Such seekers, Krishna says, also reach Me.
Pay attention to those last words: 'sarvabhutahite ratah' — devoted to the good of all beings. This is the hallmark of the nirguna seeker. Like a farmer who works not just for his own field but worries about whether the whole village has water — this seeker lives not for personal liberation alone, but for the well-being of all.