When a person receives the Holy Spirit, God brings their spirit to life.

"But God is so rich in mercy, and he loved us so much, that even though we were dead because of our sins, he gave us life when he raised Christ from the dead..."
-Ephesians 2:4-5 NLT

"This means that anyone who belongs to Christ has become a new person. The old life is gone; a new life has begun!"
-2 Corinthians 5:17 NLT