Bhagwad Gita
Chapter 15, Verse 4
ततः पदं तत्परिमार्गितव्य यस्मिन्गता न निवर्तन्ति भूयः।तमेव चाद्यं पुरुषं प्रपद्ये यतः प्रवृत्तिः प्रसृता पुराणी।।15.4।।
Then, that goal should be sought for, to which, having gone, none returns again. I seek refuge in that Primeval Purusha, from whence streamed forth the ancient activity or energy.