Having to deliver this letter instead of bidding you farewell in person on the Express leaves me with a sense of regret.
I've heard of your noble deeds in the Xianzhou Luofu and had the pleasure of getting to know such intriguing a friend as Dan Heng. This journey through the meandering Xianzhou has allowed each of us, including those on the Astral Express, to find what we were seeking – a remarkable and fulfilling conclusion that is truly incredible. Now, I must continue on to the next station of my destiny.
In accordance with the customs of my homeland, it is customary to leave behind some tokens at the places one visits as a way to express gratitude to those who have aided in stepping onto unfamiliar ground and to wish for smooth travels ahead.
Thus, enclosed with this letter is a small token of appreciation. Please accept it with my sincere regards. May our paths cross once more in the future.