“But when he, the Spirit of truth, comes, he will guide you into all truth.” (John 16:13) Jesus left the world and ascended into Heaven not only to prepare a place for His disciples, but also to send forth the Holy Spirit to continue His work of sanctifying the world. Jesus stressed that His message to the disciples comes not only from Him, but also His Father. From this we can see that although the Father, Son and Holy Spirit are three distinct persons, the way in which they are unified as one is beyond our comprehension. We humans are created in the image of God. Therefore the perfection of humanity relies on our ability to coexist in a spirit of harmony. “I pray that all of them may be one, Father, just as you are in me and I am in you.” The unique quality of the Holy Trinity is its harmonious unity; the work of the Holy Spirit is to enfold us into that harmony.