In plain words
When they learnt that Śrī Rāma himself, Śrīman Nārāyaṇa made manifest, the divine being who had taken on humanness, was coming in person, the other children in the āśram were terrified. Hanumān too came with Rāmacandra. As soon as they saw Hanumān, all those children began to utter the name of Rāma. On hearing Rāma's name, Hanumān forgot himself; he too, saying ‘Rāma, Rāma...’, joined his voice with the children's and walked along with them towards Vālmīki's āśram.
The moment she saw Hanumān, Sītā was overcome with grief beyond words. When she learnt from him the news that a battle was about to begin between Rāmacandra and Lava and Kuśa, she was struck motionless. ‘Why has such a hard plight come upon my sons? What folly it is to set out to fight Rāma!’ So she went on pondering, her eyes closed. ‘A father sets right children who have taken a wrong road unknowingly and brings them back to the right road; he does not hate them. He loves his children, fondles them and gives them good counsel; he does not set out to fight them. So Rāmacandra too will forgive his children and take them to himself,’ she thought, and was comforted. Turning to Hanumān: ‘My dear! These children are my very own children, Śrī Rāma's children. But they do not know that Rāmacandra himself is their father. Angry that Śrī Rāma sent his wedded wife Sītā to the forest and made her suffer, they have resolved to fight him. In this way they are misusing the learning they have gained. If they fight Śrī Rāma, will Sītā Devī be glad? My dear! This is not good. Whether Śrī Rāma punishes or protects, it is only for my good. This is how my fate is written on my brow. No one else has the right to question Śrī Rāma's acts. The longer gold is put in the fire and burnt, the brighter it becomes. In the same way, I take it that this hardship too has come only for my good,’ she said.
Hanumān is no ordinary being; he is very great: calm, virtuous and strong.