Why is it said that Christ's death reconciles heaven and earth?

The death of Christ serves as the pivotal moment when reconciliation occurs between God and humanity. Colossians 1:20 expresses that through Jesus' blood on the cross, peace is made between heaven and earth. This means that the enmity that existed due to sin is removed, allowing for communion between God and believers. The fulfillment of this reconciliation is integral to understanding our relationship with God, where once we were enemies, we are now friends through the redemptive work of Jesus.