You can do this on your own or with a group. If with a group, let your guests know you have guided visualization to share which will involve some chanting first, and some silence afterward. Tell them you will let them know when to emerge from the silence which will last for a few minutes.
Focusing softly on the flames, begin to chant from psalms the sacred phrase: "In Your Light, We see light, B'or-khah, Neereh Or, In Your Light." Recite this together slowly, over and over, let it become a chant. Very slowly take them through each of the levels of soul in the diagram. Be sure to leave quiet time between each level. Reflecting on each level can be very interesting and pleasurable and deserves time.