The Vedantist says, 'I am He.' Brahman is real and the world illusory. Even the 'I' is illusory. Only the Supreme Brahman exists. But the 'I' cannot be got rid of. Therefore it is good to have the feeling, 'I am the servant of God, His son, His devotee.

Reference: The Gospel of Sri Ramakrishna (8.1 The Master's Birthday Celebration At Dakshineswar)