स्वप्नान्तं जागरितान्तं चोभौ येनानुपश्यति ।महान्तं विभुमात्मानं मत्वा धीरो न शोचति ॥ ४ ॥
In plain words
That by which one perceives both the whole extent of dream and the whole extent of waking -- knowing that great, all-pervading Self, the wise one does not grieve.