PATANJALI IS THE GREATEST scientist of the inner. His approach is that of a scientific mind: he is not a poet. And in that way he is very rare, because those who enter into the inner world are almost always poets, those who enter into the outer world are always almost scientists. Patanjali is a rare flower. He has a scientific mind, but his journey is inner. That's why he became the first and the last word: he is the alpha and the omega. - Yoga: The Alpha and the Omega, Vol 2, Chapter #1