As those whom the Triune God has given new birth, you have an inheritance in heaven which cannot be taken away. Jesus died for the sins of the world. On the cross he paid the price for everyone. And in raising Jesus from the dead, God has absolved and forgiven all people of their sins. However, this truth will not benefit a person unless he trusts in this fact.
Baptism is the same way.
Your sins are washed away. Your Baptism gives you an inheritance among the Saints. These things that happened in your Baptism are real and God wants you to believe them. Your Baptism is not simply a past event that you have moved on from. The promises that God has tied to your Baptism are still valid for today.