Speak to the Israelites and say to them that they
shall make themselves tzitzit on the corner wings of their garments for all
generations. And they shall include in
the tzitzit of each corner wing a thread of sky-blue wool…. I am God your Lord who brought you out of
Egypt. (Numbers 15:38, 41)
Korah son of Izhar son of Kehat son of Levi
began a rebellion along with Datan and Aviram sons of Eliav. (Numbers
16:1, 12-13) 
Korah’s challenge: "Isn't a talit prayer
shawl woven entirely with sky-blue wool exempt from the one sky-blue thread?”
Moses replied that one is obligated to tie only a single sky-blue
thread among 3 white ones. The color of
the tallit is irrelevant.
The SaPphiRe thread suggests a heavenly realm SPiRaling
through ordinary white threads to bring SPiRitual energies to everyday life.
An all sky-blue tallit symbolizes a totally spiritual
life separated from the mundane.
Kanfot, the Hebrew word for 'corners' of garments is
also used for 'corners' of the earth as in the biblical prophecy:
He will ingather the dispersed ones of Judah from the
four corner wings [kanfot] of the earth. (Isaiah 11:12).
When the City of Miami asked us to create the official
artwork for its centennial, we proposed placing tzitzit on the 4 corners
of America.
American Airlines, the largest US corporation in the wing
business, agreed to sponsor our “Four Wings of America” project.
We flew to Maine where we placed a large rope tzitzit with
a sky-blue strand on barnacle-encrusted boulders at the Atlantic Ocean.
We attached a tzitzit to a tree on the beach of a
balmy Florida bay where the blue of the sky colored the sea water.
On the Pacific coast, a Mexican boy watched the tzitzit
shuddering in the wind hanging from the wall separating San Diego from Tijuana.
From Seattle, we drove to Neah Bay, an Indian reservation at
the end of the Olympia Peninsula in Washington State to place the 4th tzitzit.