Vishnupurana 6.6.1

6.6.1

parāśara uvāca:
svādhyāyasaṃyamābhyāṃ sa dṛśyate puruṣottamaḥ
tatprāptikāraṇaṃ brahma tad etad iti paṭhyate //

HE, Purushottama, is also known by holy study and devout meditation; and either, as the cause of attaining him, is entitled Brahma. From study let a man proceed to meditation, and from meditation to study; by perfection in both supreme spirit becomes manifest. Study is one eye wherewith to behold it, and meditation is the other: he who is one with Brahma sees not with the eye of flesh.