Here's an alternative proposal:
Why not use the medium to promote the ancient Jewish teachings of enlightenment?
Kabbalah is a set of esoteric teachings to explain the relationship between an unchanging, eternal and mysterious Ein Sof (no end) and the mortal and finite universe (his creation).
The grey blocks would be covered with ancient artistic drawings, symbols and charts explaining the mysteries of life and death.
P.S. The wind comes from: http://en.wikipedia.org/wiki/The_Holocaust_Industry
