What does it mean for Christ to be the head of the church?

In Ephesians 1:22, Christ is portrayed as the head of the church, which emphasizes His authority and central role in guiding His people. As the head, Christ provides the necessary life, nourishment, and direction that the church requires to function properly. This relationship ensures that all members of the body are united under His lordship and receive their spiritual sustenance from Him. It also highlights the intimate connection between Christ and the church, affirming that the church exists for His glory and is subject to His will and purpose.