Vaishnava Dharmashastra 97.7

97.7

atha nirākāre lakṣabandhaṃ kartuṃ na śaknoti, tadā pṛthivyaptejovāyvākāśamanobuddhyātmāvyaktapuruṣāṇāṃ pūrvaṃ pūrvaṃ dhyātvā tatra labdhalakṣaḥ tatparityajyāparam aparaṃ dhyāyet ||

If he is unable to fix his mind upon the being
[2, 3. According to Nand., all the properties of Purusha mentioned in this Sûtra are such as distinguish him from the rest of the entities, the first two distinguishing him from 'self-consciousness' (ahamkâra), the voidness of quality distinguishing him from the 'root-principle' (mûlaprakriti), which is composed of three qualities, &c.
4. The properties of Pûrusha here mentioned are faculties only, so that there is no contradiction to the 'voidness of form' and the other properties enumerated in the preceding Sûtras. (Nand.)
6. The external signs of the accomplishment of Yoga, as stated by Yâgñavalkya (III, 202 seq.), are, the faculty of entering another body and of creating anything at will, and other miraculous powers and qualities. (Nand.)] destitute of form, he must meditate successively on earth, water, fire, air, ether, mind, intellect, self, the indiscrete, and Purusha: having fully apprehended one, he must dismiss it from his thoughts and fix his mind upon the next one in order.