Complex sentence: Whereas in Roman Catholicism the goal of the sacrament of Penance is reconciliation with God through means of justification, in Orthodoxy the intention of the sacramental mystery of Holy Confession is to provide reconciliation with God through means of healing.
Split into simpler sentences: Whereas in Roman Catholicism, the goal of the sacrament of Penance is reconciliation with God, through means of justification. However, in Orthodoxy, the intention of the sacramental mystery of Holy Confession is to provide reconciliation with God, but through means of healing.