Vav

Creation
Vav, the sixth letter of the Hebrew alphabet, has the numeric value of six. The number six symbolizes creation, as G-d created the world in six days. There are six orders of the mishnah, six letters of the word bereishit, six-millennium duration of the world, and six directions of the physical world.
The literal translation of Vav is hook.
Vav represents a man standing upright.
The linear form of the Vav represents the flow of Divine energy G-d drew down into the space He created to form the universe.