This sacred building of nine doors (body) is endued with all these existences. That which is high above them, viz., the Soul, lives within it, pervading it all over. Therefore it is called Purusha.
नवद्वारं पुरं पुण्यमेतैर्भावैः समन्वितम्। व्याप्य शेते महानात्मा तस्मात् पुरुष उच्यते॥