Some important events can be listed in this manner in order to show the pattern:
1. Arthur had a vision that he will die. Therefore, he avoids the battle by calling a truce.
2. A Knight wants to kill an adder which is a big snake and that ensues a battle.
3. Arthur tells Sir Bedivere to throw away the sword, Excalibur, into water. But he hides the sword under a tree.
4. Arthur's death and defeat in the battle.
5. Arthur tries to change his destiny by calling a truce, but his destiny chases him anyway.
6. Arthur wants to correct the wrongdoings of Mordred, even it will cost him his life.
7. Excalibur's magic power is in using it for the good purposes instead of evil.