Sangam literature shows the life of Tamil people and the various changes, developments and creations that happened from time to time. “Agananooru” is a book full of concepts related to the Agam (internal life) way of life. The songs of this book contain many allegories and proverbs that would uplift the character of an individual. It is also remarkable to consider that natural resources, wind, rain and other forms of the natural environment have the power to change the nature of people. Therefore, the way of life of the people is adapted to the natural system and environment present there. “Agananooru” reveals the rich heritage and culture of Tamils. Even allegories are found in any literature; Tamil Literary works are studded with many allegories to reveal the secrets of truth and life to the people. “Agananooru” has many messages that deal with the allegorical descriptions. The purpose of the article is to explore the use of allegories and metaphors by explaining the style seen in the songs of “Agananooru” referring along with Tolkappiyar's similes throughout the songs. It also portrays how metaphors of utility are created, the truths mentioned by “Thandiyalankaram” like the simile of fame, the simile of connection, etc. are employed in the songs.