Why did Europe monarchs fund such risky voyages by navigators?

European monarchs funded risky voyages by navigators primarily to expand their empires, gain access to new trade routes, and acquire valuable resources. The potential for immense wealth from spices, gold, and other commodities motivated them to invest in exploration. Additionally, these expeditions offered opportunities to spread Christianity and enhance national prestige. Ultimately, the promise of economic and strategic advantages outweighed the risks associated with long sea journeys.