The Cross is in Christian imagery a mandala* – a fourfold, concentric shape. The arms of Christ outstretched on it symbolize the whole of creation being embraced by Christ while the place where the four arms of the cross join is the Center. There are, of course, many mandalas found in religions all over the world, suggesting, as Jung has shown, that everywhere life strives for wholeness and completion.
There are also many other religions in which the symbol of the cross plays an important role, as Jung has also shown in his many writings. But the Christian cross is a little different, because it is fixed into the ground. The reason that one of the extensions of the cross is longer than the others is because it is grounded. This fixedness in the ground of the Christian cross relates to its rootedness in human life. Mystically speaking, we are the ground in which the mystery of the cross is to be grounded. Then and then only does the mystery become realized. When a person goes through the mysterion, the mystical initiation into the hidden significance of the cross, then the cross has become real, that is, has been grounded in actual human existence.
* from Sanskrit, a circle. a circular design containing concentric geometric forms, images of deities, etc. and symbolizing the universe, totality, or wholeness in Hinduism and Buddhism.
Certain things can not happen unless something dies.
John Sanford — From Dreams: God’s Forgotten Language, p. 174f.