Here's why:
* Deeply personal and introspective: Shepard details his spiritual journey, his struggles with sin, and his search for God's grace. This is a hallmark of Puritan autobiography, where the focus is on the individual's relationship with God.
* Focus on the "inner life": Shepard examines his own thoughts, feelings, and motivations, revealing the intense introspection common to Puritanism. He meticulously records his religious experiences and the inner workings of his soul.
* Detailed account of conversion: Shepard describes his conversion experience in great detail, a key element of Puritan spiritual narratives. He explores the specific moments and events that led him to faith and the struggles he faced in accepting God's grace.
* Emphasis on God's sovereignty: Shepard firmly believes in God's absolute power and control over his life. He sees his own experiences as part of God's larger plan, highlighting the central role of divine providence in Puritan thought.
* A lasting impact: "The Autobiography of Thomas Shepard" remains an important document for understanding Puritanism and its religious practices. It offers valuable insights into the inner life and worldview of this influential movement.
While there are other notable Puritan spiritual autobiographies, "The Autobiography of Thomas Shepard" is considered a classic and offers a rich and detailed exploration of the Puritan experience.