Tetragrammaton of the Greek word of four letters and in the Jewish tradition cbalistíca refers in Hebrew to the name of God Yod He Vav He 
Yod: It is the unit from which the rest of the letters start. Its symbolism represents it as the seed and genesis of life. It is also related to the male figure, that of the father; and in this it is closely linked with the figure of the "creator God". It also represents force, light, fire, among other similar elements.
He: It is a sign of femininity, complementary to Yod, together they originate life. It is the humidity, the earth, the Mother and the understanding. As we see, it is repeated twice in the Hebrew word.
Vav: It is the result of the union of both letters, it is related to the figure of creation or the son. In other words, it is the personification of beauty, the result of mother and father.
 The tetragrammaton, as we can see, represents the union between the masculine and the feminine, between the earthly and the ethereal or divine. The symbol was used for centuries as a representation of the true name of God, which was impossible to pronounce for any human being. 
 If we pronounced the word HWHY in Hebrew, it would sound something like: YAHAWAH, which in the West and in the Old Testament is known as Jehovah (one of the names by which God is designated). 
 Both the word and the symbol of the tetragrammaton began to be used as a sacred representation from time immemorial. They appear, for example, in the scrolls of the Dead Sea, in temples built thousands of years ago and in different Jewish and Christian artistic manifestations. 
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