What does Mr. Lamb say about locking oneself away?

Mr. Lamb advises against locking oneself away from the world, as he believes it leads to a life of isolation and missed opportunities. He explains that by shutting oneself off, whether physically or emotionally, a person prevents themselves from experiencing the beauty and possibilities that life has to offer. Mr. Lamb encourages Derry to embrace life, interact with others, and not let his appearance trap him in solitude. He suggests that the world is full of experiences waiting to be discovered, and one should not hide from them because of self-consciousness.

This question related to Chapter 5 English Vistas Class 12th NCERT.
From the Chapter 5, On the Face of It.
Give answer according to your understanding.