"The Destiny of the Soul" is a philosophical book written by William Rounseville Alger, originally published in 1864. The book explores the concept of the soul and its ultimate destiny in the afterlife. Alger's writing is a combination of philosophy, spirituality, and religion and it touches on themes such as the nature of God, immortality and the purpose of life.

The book is divided into three parts, each of which focuses on a different aspect of the soul's destiny. The first part explores the concept of the soul and its inherent qualities, such as its immortality and its relationship with God. The second part delves into the various theories and beliefs about the afterlife, including reincarnation, heaven, and hell. The final part considers the implications of our beliefs about the soul and the afterlife for our lives on earth.

Alger's writing is poetic and thought-provoking and he draws on a wide range of philosophical and religious traditions to explore the destiny of the soul. Ultimately, "The Destiny of the Soul" invites readers to reflect on their own beliefs about the soul and its ultimate destiny and to consider how those beliefs shape their lives and actions.