He protects his friend without expectation during his lonely and paranoid crises, finds him work, provides new clothes, and oversees his care. In the ensuing process, he looks after Raskolnikov's mother Pulcheria and his sister Dunya, becoming a part of the family. Combining his intellect with the realities of practical life, Razumihin acts as a balancing element against the madness brought on by pure reason (Raskolnikov's condition), and by finally marrying Dunya, he establishes an honest, protective home for Raskolnikov's family.