What are two major themes of confessions book XI?

Two major themes of book XI of "Confessions" by Saint Augustine are the nature of time and eternity, and the philosophical concept of memory as a bridge between the past and present. Augustine reflects on the paradoxical nature of time as a human construct and grApples with the concept of eternity as a realm beyond human comprehension. Additionally, he explores the interconnectedness of memory, perception, and self-awareness as he delves into his own experiences and reflections on faith and spiritual truths.