A knight of faith is a person who has a super strong belief in something, even if it doesn't make sense to others. You know how sometimes you might have an imaginary friend that only you can see or talk to, but it makes you happy? That's kind of like being a knight of faith.
The knight of faith believes in something so much that they are willing to do anything for it, even if it's really hard or seems crazy to other people. They might have to give up things they love or be really scared, but they still believe in their thing more than anything else.
Being a knight of faith is like being a superhero of belief. It takes a lot of courage and strength, but it can also be really rewarding.