Final answer:
The author calls his trip to the Arctic region the beginning of another life because it transformed his perspective and redefined his relationship to the planet, as stated in the preface of the book.
Step-by-step explanation:
The author calls his trip to the Arctic region the beginning of another life because it transformed his perspective and redefined his relationship to the planet, as stated in the preface of the book. It represents a personal journey that had a profound impact on the author's life, and he hopes that readers might begin their own journeys and arrive at similar realizations. Therefore, I agree that the trip can be considered the beginning of another life for the author.