The underlying white on white image depicts the "missing" letter. Jewish sages imagined it to look like a four armed letter Shin. The black Hebrew letters Aleph- Mem- Tav form the word “emet – truth”. To pronounce “Aleph” is taking a breath in order to speak. The letter “Mem” evokes rachamim- mercifulness; the last letter in the Hebrew Alphabet “ Tav” stands for the ending of and the beginning of a new cycle. The three armed letter Shin is embedded in the four armed missing letter. The white letter "Shin" combines with the black letter ”Aleph“ to form the word “fire - esch”. The holy fire is supposed to be black ( black Aleph, white Shin). Shin and Mem form “ Shem- Gds name” and “ Sham- there( in Babylon)”. You could associate “eschet” for “eschet chail – the good woman”. The white Latin alphabet letters say "missing". Not only the kabbalistic letter is missing but humans are missing who will “heal this world”. Nimrod usurped (sham – there) a Gd like language which is not Gds (shem) language. By using disinformation and only man made materials his endeavor was bound to fail. Man often puts his self glorifying goals ahead of what might be good for society, woman more often looks at the whole picture ( eschet chail). The invisible letter, needed to re-create a just and human society, has been missing since the destruction of the first tablets of Gds commandments by Moses. The true human spirit was missing when the tower was put up. A unifying language would lose a lot of culture that is embedded in all the different languages that are spoken by different social groups. You might say Gd used rachamim- mercifulness for the humans he created by destroying the tower.