।।2.69।। या आत्मविषया बुद्धिः सर्वभूतानां निशा निशा इव अप्रकाशिका। तस्याम् आत्मविषयायां बुद्धौ इन्द्रिय संयमी प्रसन्नमना जागर्ति आत्मानम् अवलोकयन् आस्ते इत्यर्थः। यस्यां शब्दादिविषयायां बुद्धौ सर्वाणि भूतानि जाग्रति प्रबुद्धानि भवन्ति सा शब्दादिविषया बुद्धिः आत्मानं पश्यतो मुनेः निशा इव अप्रकाशिका भवति।
2.69 That Buddhi (understanding) which has the self for its object, is night to all beings, i.e., is obscure like night to all. But he, who has subdued the senses and is serene, is awake in respect of the self. The meaning is that he has the vision of the self. All beings are awake, i.e., are actively cognisant in respect of objects of the senses like sound. But such sense objects are like things enshrouded by night to the sage who is awake to the self.
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