I Cor. 15:17 And if Christ has not been raised, then your faith is useless, and you are still under condemnation for your sins.
The resurrection of Christ is the most important event in all of history. The Gospel message does not exist without it. If Jesus did not overcome death, there is no saving grace. We are still victims of sin. The Jews are the only ones who could make it to heaven and that would only be if they followed all of God's laws and sacrifices. It would be utterly useless for us who are not Jewish to even try to please God.
If there is no resurrection then God becomes only an inaccessible force in the universe. We would have nothing to put our faith in. God would not be knowable to us as one who knows and understands what it is like to be us. There would be scarcely anyone in heaven. We would have very little hope. There would be no victory over sin.
If there is no resurrection then there is no Bible to turn to for guidance and instructions in living. The Bible would be a book of lies that we could never trust. It would be merely a story book to be read and discarded. No one would be willing to live by it or die because of it.
Yes, the resurrection means everything to us. It is God's exclamation point on His love for us. It is God giving us something worth living and dying for. Because Jesus lives we can get rid of our sins that condemn us to hell. Because He lives, we have hope for this life and all of eternity. Because He lives, we can have a relationship with God and tap into all of His blessings for us. Because He lives, we no longer live under sin's condemnation; instead we live in the freedom of Christ's righteousness and holiness.
Jesus said, "I am the resurrection and the life; no man comes to the Father except by me. Do you believe this?" Do you? Live your life like you do. Heaven awaits.