As a human being I am spiritually dead without Christ. I have committed fatal sins which would have resulted directly in me being damned for eternity. But God made me “alive” through Jesus Christ:
When you were dead in your sins and in the uncircumcision of your flesh, God made you alive with Christ. (Colossians 2:13a NIV)
How am I “alive” in ways that I was not alive before? To begin with, I am able to choose what is right, rather than simply follow the selfish dictates of convenience. I got the power and the knowledge to achieve this directly from God through the example of His Son Jesus Christ.
Also, I was freed from the eternal curse of sin. Rather than spend eternity apart from God in hell, I will now spend eternity in fellowship with God in heaven.