Bhagavatapurana 4.8.80

4.8.80

tasminn abhidhyāyati viśvam ātmano dvāraṃ nirudhyāsum ananyayā dhiyā /
lokā nirucchvāsa-nipīḍitā bhṛśaṃ sa-loka-pālāḥ śaraṇaṃ yayur harim //

80. When he was contemplating the perfect Lord Vishnu, the source of his own self, with his mind that had ceased to see difference and with his breaths under control, the worlds with their protectors became distressed, not being able to breathe, and sought refuge with Hari.