What is the wisdom behind the Prophet's marriage to Lady Aisha when she was six years old?

The Prophet, may Allah bless him and grant him peace, married Aisha, may Allah be pleased with her, when she was young for several reasons, among them: because he saw in her intelligence and understanding, so that she would be more capable of conveying his message and his private life at home, for knowledge acquired in youth is more firmly rooted. She indeed became a reference for the Companions and others. Another reason was to strengthen the bond between him and Abu Bakr Al-Siddiq and his family.