Here is a puzzle that has kept me awake for a few nights, and the answer is still eluding me.
The kabala (Jewish Mysticism) teaches that every letter of the Hebrew alphabet has three values. For example, Aleph (A) is the first letter of the alphabet. It also has a numerical value of 1, which reflects unity. Aleph is also represented by the head of an ox, as a representation of purpose and the generative power of nature.
All the letters of the Hebrew alphabet have these triple meanings, and they capture the essence of our existence here. These letters have many other meanings, but these three meanings (the alphabet, the numerical value and the symbolic representation) are the most significant ones.