How do we know that suffering for Christ is meaningful?

In Philippians 1:29-30, Paul expresses that it has been granted to us not only to believe in Christ but also to suffer for His sake. This suffering serves as an evident token of salvation, demonstrating our union with Christ in His sufferings. It is a privilege to share in His afflictions, as it deepens our faith and reliance on Him. Furthermore, when we suffer for righteousness, it aligns us with Christ's own experiences, producing endurance and hope, ultimately leading to joy and glory in His presence.