When a person regards creatures of innumerable varieties to be all of one and the same and to be but various emanations of the same essence, he is then said to have attained Brahma.
यदा भूतपृथग्भावमेकस्थमनुपश्यति। तत एव च विस्तारं ब्रह्म सम्पद्यते तदा॥