The 'appearing' of Christ has a two-fold meaning. Obviously, Jesus will return with every eye seeing Him and with us being translated from corruptible to incorruptible.
But there is a second meaning to Christ's appearing and that has to do with the revelation of our identity in Christ.
When we begin to see ourselves as New Spirit beings empowered by the Holy Spirit we become like Christ Jesus. The Mind Of Christ becomes our mind with the associated manifestation of His power and His authority. - Phi 2:5 Phi 3:15