What are the two main reasons the narrator gives for why he is adventuring into the frozen north?

The narrator ventures into the frozen north primarily for the thrill of exploration and the desire to push the boundaries of human experience. He seeks to uncover the mysteries of the Arctic landscape and document its wonders, driven by a sense of adventure and curiOSity about the unknown. Additionally, he is motivated by a personal quest for meaning and understanding in his life, aiming to confront the harsh realities of nature and his own limitations.