Śrī Caitanya-caritāmṛta - Madhya-līlā 8.273-275

"“A devotee advanced on the spiritual platform sees everything movable and inert as the Supreme Lord. For him, everything he sees here and there is but a manifestation of Lord Kṛṣṇa."

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"“The mahā-bhāgavata, the advanced devotee, certainly sees everything mobile and immobile, but he does not exactly see their forms. Rather, everywhere he immediately sees manifest the form of the Supreme Lord.”"

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"Śrī Caitanya Mahāprabhu continued, “ ‘A person advanced in devotional service sees within everything the soul of souls, the Supreme Personality of Godhead, Śrī Kṛṣṇa. Consequently he always sees the form of the Supreme Personality of Godhead as the cause of all causes and understands that all things are situated in Him.’"

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Śrī caitanya-caritāmṛta Madhya 8.273 & 274 & 275