It was possibly religion... I THINK
Unlike a sole proprietorship or general partnership, a corporation is a separate legal entity, separate and distinct from its owners. It can be created for a limited duration, or it can have perpetual existence. Since it is a separate legal entity, a corporation has continuity regardless of its owners.
Answer:
Feudal lords hired Samurai to defend their territories against competitors, to combat government-identified enemies, and to deal with hostile tribes and bandits. Samurai may, however, live in tents, in a palace, or in their own private homes.