Your constitutional position is that you are pure living soul. This material body cannot be identified with your real self; nor is your mind your real identity, nor your intelligence, nor false ego. Your identity is that of eternal servitor of the Supreme Lord Kṛṣṇa. Your position is that you’re transcendental. The superior energy of Kṛṣṇa is spiritual in constitution, and the inferior external energy is material. Since you are between the material energy and the spiritual energy, your position is marginal. Belonging to the marginal potency of Kṛṣṇa, you are simultaneously one with and different from Kṛṣṇa. Because you are spirit, you are not different from Kṛṣṇa, and because you are only a minute particle of Kṛṣṇa, you are different from Him.
Source: A.C. Bhaktivedanta Swami Prabhupada (2012 edition), “Teachings of Lord Caitanya, The Golden Avatara”, Page 64