The Butterfly Trail is probably the most accomplished book Wu Ming-i has written during his current nature-writing stage. To understand why this work has been hailed as the pinnacle of Taiwanese nature writing, you have to accompany Wu as he observes the natural world through the eyes of butterflies. The Butterfly Trail is a treasure house of poetry and philosophy.
以此邏輯看來，《蝶道》就是吳明益現階段自然書寫的「完全」之作，要知道這本被稱為「台灣自然書寫新高峰」的書籍到底臻於何境，讀者不妨和吳明益一起從蝴蝶極破碎又極完整的複眼觀看：自然界《蝶道》中，無盡藏著的詩意與哲思。