Answer:
These rules were made by the Japanese in an attempt to seclude Japan and also prevent the Christianization of the nation.
Step-by-step explanation:
The 1635 Edict proclaimed an order that contains numerous terms or reform orders that are meant to prevent anyone from leaving the country. It also orders the prevention of any foreigner's entry into the country, thereby "isolating" it from any outside factors.
The given excerpt is from the Edict of 1635, which "strictly forbids" Japanese ships to go to foreign countries. It also prohibits any Japanese subject from leaving the country, if found, must be executed. Ships caught leaving must be impounded, and the owner must also be arrested. And any returnee must be killed. All these rules were made to prevent any foreign intervention into Japan and also to prevent the entry of western religions such as Christianity.