Answer:
There were several reasons for exploring the New World. The Catholic Church looked for people to convert to Catholicism. The Spanish crown looked for exotic resources, established trade and extended Spain's colonies.
Step-by-step explanation:
The answer above is the "possible answer" in edge2021. If you are worried about plagiarism or something like that you can put my answer (which is below).
Second Answer:
Spain did not immediately realize that the New World was in fact a new continent. Columbus himself died without ever knowing that the land he had arrived in was not India.
However, when Spain realized that this land was completely undiscovered, they decided to explore it. This was motivated by several reasons. On the one hand, they were curious to see what the territory was like. On the other hand, they were also motivated by the possibility of owning such a vast territory and the resources located in it. Finally, they were motivated by the idea of turning the Native American people they encountered into Christians, thus achieving their salvation.