Which poet wrote about the themes of innocence and experience?

The poet known for exploring the themes of innocence and experience is William Blake. In his seminal works, particularly the collection "Songs of Innocence and of Experience," Blake contrasts the two states of the human soul. "Songs of Innocence" celebrates purity, joy, and the untainted perspective of childhood, while "Songs of Experience" presents a darker, more cynical view of the world that reflects the loss of innocence and the complexities of adult life. Through this duality, Blake delves into the philosophical and emotional struggles of humanity, emphasizing the importance of both innocence and experience in understanding the human condition. This exploration distinguishes Blake's work from that of other poets, making him a central figure in discussions about these intertwined themes.