Gate of Alef Alef is the name of the first letter of the Hebrew alphabet. In addition to being one of the mothers (with Mem and Shin) This portal is almost transparent, so many lines close together, forming a whole, one, unity, support each number key. The unity of G-d. In the tree of the sefirot, Alef connects Ghevura (force), with Chessed (Love). A door made of air, this letter is not the division, but most of all the space that divides the waters, is ethereal, connects earth to heaven.