Cantor's image is flanked by the "Aleph", the first letter of the Hebrew alphabet, which Cantor used (accompanied by subscripts) in his descriptions of transfinite numbers -- quite simply numbers which were not finite.

Cantor recognized and demonstrated that infinite sets can be of different sizes.  He distinguished between countable and uncountable sets, and was able to prove that the set of all rational numbers Q is countable, while the set off all real numbers R is uncountable, and therefore, though both were infinite, R was strictly larger.

Backing Cantor's image is a graphic generated from a "Cantor Set".

A "Cantor Set" is an infinite set constructed using only the numbers between 0 and 1.

A Cantor set is constructed by starting with a line of length 1, and removing the middle 1/3. Next, the middle 1/3 of each of the pieces that are left are removed, and then the middle 1/3 of the pieces that remain after that are removed.

The set that remains after continuing this process forever is called the Cantor set.

The Cantor set contains uncountably many points.

The graphic set which backs Cantor's image began with an algorithm to generate the Cantor set, to which color was applied, and then universal operators related to color transition and magnification, ultimately resulting in a unique image whose essence was the Cantor set.

The final problem which Cantor grappled with was the realization that there could be no set containing everything, since, given any set, there is always a larger set -- its set of subsets.

Cantor came came to the conclusion that the Absolute was beyond man's reach, and identified this concept with God.

In one of his last letters Cantor wrote:

I have never proceeded from any 'Genus supermum' of the actual infinite. Quite the contrary, I have rigorously proved that there is absolutely no "Genus supremum' of the actual infinite. What surpasses all that is finite and transfinite is no 'Genus'; it is the single, completely individual unity in which everything is included, which includes the Absolute, incomprehensible to the human understanding. This is the Actus Purissimus, which by many is called God."

- Georg Cantor