In what two ways did the Crusades contribute to the spread of Renaissance ideas throughout Europe?

When the Europeans (Christians) were fighting/traveling to the Middle East,

1. Europeans came into contact with the Middle East for the first time

This brought them into contact with Roman and Greek texts and other objects that Muslims had "saved". It was Roman and Greek art and architecture styles used in the Renaissance

2. People lost faith in the Catholic Church and began to focus on human experience

With the Christians losing the Crusades, they began to doubt and question the Church and its authority