How do we know the reality of Christ is true?

The basis of affirming Christ's reality is steeped in the understanding that spiritual truths are not readily discernible through human intellect alone. 1 Corinthians 2:14 states that the natural man cannot comprehend the things of the Spirit of God; they are seen as foolishness to him. This underscores the necessity of spiritual rebirth, as Jesus articulated with Nicodemus, when He said that one must be born again to perceive the kingdom of God. Without this divine revelation, humans remain in darkness regarding the true substance of reality manifest in Christ.