In plain words
Though Rāma too knew its inner meaning, He had Hanumān give the answer so as to teach it to the people around. Then Hanumān: ‘In all these bodies, everywhere, the Name of Rāma is contained. There is not an atom in my body without the Name of Rāma. I will not let anything like that in. I will not keep it with me even for a moment,’ and with that he plucked a hair from his arm. He held it near Rāma's ear. He held it near Sītā's ear. That hair was saying, ‘Rām, Rām, Rām.’ Because he thought of Rāma at all times in this way, he became a brahmacārī. His whole body is filled with the Name of Rāma. Whatever work he did, it was the Name of Rāma and nothing else! Everywhere he dwelt in the thought of Rāma. ‘In what way do you think of Rāma, Hanumā?’ Rāma once asked. In reply, Hanumān: ‘In the feeling of the body, You are the Lord and I am the servant. In the feeling of the mind, You are the original and I am the reflection. In the feeling of the Ātma, You are I and I am You, Rāma!’ he said. These feelings will never be shaken, he said. Brahmacarya is made of just these three feelings. Brahmacarya is not something beyond understanding. The body is God's servant. The body has a master. That master is the jīva. He goes along with that feeling. Then again, in the feeling of the jīva, the jīva is nothing but the reflection of the Ātma. So in the feeling of the jīva there is no room for bad feelings to arise. It is nothing but the reflection of the Ātma! There is no room for bad feelings to come to the Ātma. One can be joined with the Ātma. One can merge in the Ātma. In the feeling of the Ātma the two are one. In those days they also gave fine meanings to the principle of the pativratā:
She does not answer back her husband's words; she never says that she cannot serve him; she stays content with what she has.