Outside of Utopia, money is the cause of endless trouble. In Utopia, "once the use of money was abolished, and together with it all greed for it, what a mass of troubles was cut away, what a crop of crimes was pulled up by the roots! Is there anyone who does not know that fraud, theft, plunder, strife, turmoil, contention, rebellion, murder, treason, poisoning, crimes which are constantly punished but never held in check, would die away if money were eliminated?" (132)
Unlike many games, where different songs have different themes for each character or area, Wintory chose to base all of the pieces on one theme which stood for the player and their journey, with cello solos especially representing the player. Wintory describes the music as "like a big cello concerto where you are the soloist and all the rest of the instruments represent the world around you", though he describes it as not necessarily orchestral due to the inclusion of electronic aspects. The cello begins the game as "immersed in a sea of electronic sound", before first emerging on its own and then merging into a full orchestra, mirroring the player's journey to the mountain. While the game's art style is based on several different cultures, Wintory tried to remove any overt cultural influences from the music to make it "as universal and culture-less as possible". Tina Guo features as the cellist for the soundtrack. She is a close friend of Wintory and has since performed "Woven Variations" with him, an eight-minute orchestral variation on the Journey soundtrack. All of the non-electronic instruments in the soundtrack were recorded with a live orchestra.
"Voyage centres on a young psychiatrist (played by Ryo van Kooten) who leaves Hong Kong to embark on a long lone voyage from Hong Kong along the coast of South-East Asia to try to overcome the emotional turmoil he has experienced in his relationships with former clients. While travelling, he tries to come to terms with his experiences by making a detailed record of their stories, and decides to visit those places himself.