Often the four characters reflect the moral behind the story rather than the story itself. For example, the phrase " (", lit: "break the pots and sink the ships") is based on a historical account where the general Xiang Yu ordered his troops to destroy all cooking utensils and boats after crossing a river into the enemy's territory. He won the battle because of this "no-retreat" strategy. Thus, the idiom is used as a verb phrase with the meaning "to make an all-out effort to achieve success by the deliberate removal of recourse or backup." Similar phrases are known in the West, such as "Burning one's boats", "burning one's bridges", "Point of no return" or "Crossing the Rubicon".