Introduction:
The poet advises us to master our mother tongue. In this poem, the poet emphasizes the importance of knowing and preserving our mother tongue and suggests that it is a skill that we should all strive to acquire.

Reasoning:
1. Preserving cultural identity: By mastering our mother tongue, we are able to connect with our cultural roots and preserve our cultural identity. Language is an integral part of a culture, and by understanding and speaking our mother tongue, we can better understand our heritage and traditions.

2. Effective communication: Mastering our mother tongue enables us to effectively communicate with our family, friends, and community. Our mother tongue is the language we are most comfortable with, and by becoming fluent in it, we can express ourselves more clearly and precisely.

3. Enhanced cognitive abilities: Learning and mastering a language, especially our mother tongue, has been found to improve cognitive abilities such as memory, problem-solving, and critical thinking. It stimulates the brain and enhances overall intellectual development.

4. Preserving language diversity: Each language carries unique cultural and historical significance. By mastering our mother tongue, we contribute to the preservation of language diversity. Language is an essential part of our human heritage, and by safeguarding our mother tongue, we ensure its survival for future generations.

5. Connecting with others: Mastering our mother tongue allows us to connect more deeply with others who speak the same language. It facilitates communication, understanding, and the formation of meaningful relationships. Language acts as a bridge that brings people together, and by mastering our mother tongue, we can build stronger connections with others.

Conclusion:
In conclusion, the poet advises us to master our mother tongue as it helps us preserve our cultural identity, enables effective communication, enhances cognitive abilities, contributes to language diversity, and allows us to connect with others more deeply. Mastering our mother tongue is a valuable skill that we should all strive to acquire and nurture.