Why is understanding union with Christ important for Christians?

The union of believers with Christ is a profound theological concept that signifies not only our identification with Him but also His indwelling in us. This doctrine reiterates that we are not merely followers but are organically connected to Christ as the vine is to its branches (John 15:5). In this union, believers experience transformation, new life, and the assurance of salvation. Recognizing that we are 'His' helps us grasp the extent of God's love and commitment towards us, making us secure in our faith and compelling us to live for His glory. As believers, our actions and identities are shaped by this union, pressing us to reflect His character in our lives.