In plain words
When you recognise your true nature, there is no room for vices
Once, a cowherd drove his cattle out among the hills. There, while the cattle grazed, this boy raised his voice and began to sing a song. Since it was a hilly place, the song he sang began to echo all around. “What is this? Someone is singing the song I sang all over again, to compete with me!” thought the innocent boy. “Hey, who are you? Why are you singing just as I sang?” he shouted loudly. The same words came back. He grew very angry. ‘Who is this fellow? Is he from our village? Or from the next village? Why is he insulting me like this?’ he thought. He made up his mind to find out the next day who the fellow was. In the evening, after going home, he told his mother what had happened. “My dear! Tomorrow I too will come with you. Don't be afraid at all,” she said, giving the boy courage. The next day she went along with him. “My dear! Sing again the song you sang yesterday,” she said. He began to sing. As before, its echo was heard. “Mother, look, someone is singing just as I sang,” he said. The mother burst out laughing: “Silly boy! Your own song is echoing back from these hills. Thinking by mistake that some stranger is mocking you, you are getting angry,” she said. Learning that there is such a thing as an echo, the boy was greatly amazed. Before he knew it was a ‘resound’, he got angry. Once he knew the truth, he did not get angry again. This too is just what Kṛṣṇa said in the Bhagavad Gītā! ‘All are parts of Me,’ He said. One who knows this truth does not get angry with others. Man gives room to vices such as anger, hatred and envy only because he cannot recognise his true nature. He falls into many troubles only because he does not know the truth. If he is to recognise the nature of God, he must first recognise his own nature.
Tyāgarāja said, “Knowing it, think of Rāma, O mind!” Many people keep remembering the Name of Rāma.