In plain words
That very boy was Rāmakṛṣṇa's son of Prema, Brahmānanda! The first President of the Rāmakṛṣṇa Maṭha. Eight minutes before his last moment, Rāmakṛṣṇa called Brahmānanda close to him and told him, in his ear, what he had experienced in his dhyāna. He said, ‘My son alone has the right to all that is mine.’
The reason for telling you this story is this: Rāmakṛṣṇa had one son of Prema, that Brahmānanda! To Me, all of you are sons of Prema!
But all of you must become worthy of the station of sons of Prema; you must make the principle of Prema grow in the heart.