For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. (John 3:16)

All spirit beings (humans) exist to live forever. Eternal life is experiencing life with God. Spiritual death is spending an eternity apart from God.

We receive eternal life when we receive Jesus. Our inner man is a new creation, which is born of eternal life, and it will never die. The awareness of eternal life frees us, and all fear of what happens at death is gone.