The death and burial of our body of flesh and the resurrection of our new man all occurs spiritually, not physically, when we are born again or born of the Spirit - John 3:6
Immediately after that, preferably, we obey the Lord in submitting to water baptism. Here the "burial" and "resurrection" that we experienced spiritually at our new birth are "acted out" or portrayed, without anything necessarily taking place spiritually or supernaturally- other than the satisfaction we derive from obeying the Lord.
The same is true in communion. We are remembering His death, specifically His body and His blood that He willingly gave for our forgiveness of sins. But there is not anything supernatural taking place, as some have taught. Again, we should experience satisfaction because we are obeying Him.