The Mind, is the attribute of existence. Existence springs from the Prakriti which exists in That which is the Soul of all existent beings.
मनः सत्त्वगुणं प्राहुः सत्त्वमव्यक्तजं तथा। सर्वभूतात्मभूतस्थं तस्माद् बुद्ध्येत बुद्धिमान्॥