Leaves of grass was a poem collection by Walt Whitman. It was published in 1855. It’s known today as one of the most influential texts of the last few centuries. Some of the themes found within include how Whitman wanted to eulogize democracy and the American nation. Whitman also wanted to give a sort of poetical expression to his thoughts about birth, death, rebirth or resurrection, and reincarnation.Whitman also believed that the cosmos didn’t consist of any lifeless matter. He had said something about democracy, in which he kept deep faith because this political form of  government respected the individual. “Leaves of Grass” was a series of connected poems that celebrated Whitman’s philosophy of life and humanity and how he praised nature and the individual humans’ roles in it. The collection was mostly focused on the body and material things; Whitman also had added some details about democracy. Critics label it as a controversial collection because of the way Whitman expressed himself, but that was his intention in making this collection of poems.