Bhagavatapurana 4.11.11

4.11.11

sarva-bhūtātma-bhāvena bhūtāvāsaṃ hariṃ bhavān /
ārādhyāpa durārādhyaṃ viṣṇos tat paramaṃ padam //

11. Having meditated on Hari, the abode of all creatures as the one soul or Atman of them all and having propitiated Him who is hard to be pleased, thou hast secured to thyself that highest place which belongs to Vishnu.