What does it mean to have spiritual life according to the Bible?

Spiritual life, as described in Scripture, represents a transformative relationship with God obtained through faith in Jesus Christ. This life is not just biological existence but encompasses eternal fellowship with God, freeing believers from sin's curse and granting them a place in His eternal kingdom. John 5:24 emphasizes that 'whoever hears my word and believes him who sent me has eternal life.' Here, spiritual life is linked to hearing and believing in God's redemptive work through Christ, highlighting the necessity of this faith for true spiritual revival and sustenance.