2:69
या निशा सर्वभूतानां तस्यां जागर्ति संयमी ।
यस्यां जाग्रति भूतानि सा निशा पश्यतो मुनेः ॥२- ६९॥
Source: Wikisource
Transliteration
yaa nishaa sarwabhootaanaaM tasyaaM jaagarti saMyamii ।
yasyaaM jaagrati bhootaani saa nishaa pashyato muneH ॥२- ६९॥
Source: Automatic ITRANS Transliteration
Translation
What is night for all beings is, for that restrainer, wakefulness.
What is wakefulness for beings, that monk sees as night.
Source: Milind S. Pandit
Translation
A yogi is aware of the thing (or Atma) about which others are unaware. A sage who sees is unaware of the experience (of sense objects) about which others are aware.
Translation
What is night for all beings is the time of awakening for the self-controlled; and the time of awakening for all beings is night for the introspective sage.
Source: Bhagavad Gita As It Is