Aathichudi is a famous Tamil poem written by the ancient poet Avvaiyar. It consists of 108 short lines, each conveying a moral lesson or practical advice. The poem is known for its simplicity and clarity, making it accessible to people of all ages. Each line begins with a letter from the Tamil alphabet, showcasing the beauty of the language. The themes of Aathichudi include ethics, wisdom, and the importance of good behavior. It emphasizes values such as honesty, kindness, and respect for others. This work is often taught in schools and is considered a significant part of Tamil literature and culture.