Dr. T.V. Rao explains several reasons why writing is an important part of his daily routine. Writing allows him to communicate ideas, stay engaged with current topics, and reflect on his life and profession as a teacher. It helps him process stress and pent-up emotions. Regular writing also helps him develop self-expression skills, structure his thoughts, monitor his progress towards goals, and find new ideas from interactions with others. Overall, writing provides therapeutic benefits and keeps him focused on continuous learning and improvement.