In Norse mythology we have a wide history involving many mythical creatures and beings. When it comes to the circle of life, the Vikings used an analogy of the great ash tree, Yggdrasil, the tree that connects the nine worlds. Yggdrasil is rooted in the Well of Urd and acts as a conduit to all life in the nine worlds.
The three Norns; Urd, Verdandi, and Skuld are weaving the fate of all living beings. Not much is known about the Norns, but these three Norns are sisters and described as powerful maiden giantesses who rule the faith of Gods and men. The three sisters are associated with the Past, Present, and the Future.
Verdandi is the Norn that represents the present.