These banners are based on several scripture passages: Ezekiel 47:1-6; Revelation 22:1-2; and John 19:33-34.
John is drawing on the Ezedkiel passage when he used the image of blood and water flowing from the side of Christ ~ who is the "New Temple." Blood and water are symbolic of the Sacraments of Eucharist and Baptism. So the life-giving water, or the living water flowing from the side of Christ symbolizes the water of baptism, by which we were united to Christ and began sharing his life. Use the image of the river (blue) to draw you into your baptism, in which His life was poured out and given to you.
These banners are used for both Christmas and Easter. White and gold are meant to be symbols of life and joy.
Easter: The church celebrates Easter for seven weeks ~ to convey to us that Easter is not a past event, but a very real event now. That Jesus is alive and present among us. "I am with you until the end of time." The church uses the color of white during this season to celebrate the victory of Jesus over darkness and sin, life over death, joy over sadness, love over hate. These banners are meant to convey joy and life. Eucharistic symbols of wheat and grapes are meant to help us in realizing the living presence of Jesus given to us in the Eucharistic bread and wine ~ the real and divine body and blood of Christ.
Christmas: The church also uses white during the Christmas season to celebrate Jesus' coming into the world. The words of John's Gospel, "The light came into the world and darkness has not overcome it." Jesus is the light of the world. So during a dark and dreary season of winter, white and gold are used to be a source of joy and hope ~ so that we are never overcome by the darkness of sin and evil.
I would ask that you try to allow yourself to be drawn into the images for which the banners were designed. Each set can draw us into a closer relationship with Jesus, who is the focal point of the banners.
I wish you a long and blessed journey to the fullness of what God desires for each of you.