What is the function of copied Buddhist scriptures? Can they protect themselves?

Copying scripture with sincerity and reverence will have incredible merits and interests, and even induce the protection of good gods to support it. There will be no evil in the natural vicinity, so why bother to pursue the end? Buddhism is profound and profound, and the interests are sincere and respectful. For example, practicing Buddhism can change a person's life, not to mention exorcising evil spirits to protect themselves. Often, I sincerely read the Amitabha Buddha in the south, and I will also have a body protector.