Ouroboros, the "Endless Cycle"

In addition to the attractor, there is another symbol that represents the infinite cycle of time and is a constant presence in the video game: the famous pendant by Haytham Kenway, better known as the "Key to the Temple". As can be clearly seen, the key has depicted a snake biting its own tail, called Ouroboros.
The Ouroboros is a very ancient symbol, traceable in a large number of cultures and populations and is most often represented as a snake, but sometimes as a dragon.
Apparently it is motionless, in reality it is in continuous movement as it symbolizes the power that devours and regenerates itself, or rather the cyclical nature of the universe, the eternal return, immortality and infinity.