Final answer:
Confirmation, known as Chrismation in the Eastern Catholic Churches, is administered immediately following baptism instead of at a later age and is performed by a priest. This unified rite, which also includes the Eucharist, symbolizes the immediate full inclusion into the church. Eastern churches view sacraments as ancient Mysteries, emphasizing the personal and profound nature of these rites.
Step-by-step explanation:
The celebration of Confirmation in the Eastern Catholic Churches differs from the Roman Catholic celebration in several ways. In the Roman Catholic Church, Confirmation is a distinct sacrament that occurs after baptism, usually at a later age, and is administered by a bishop. It signifies the strengthening of one's faith, the reception of the Holy Spirit, and the completion of Christian initiation.
In contrast, in the Eastern Catholic (and Orthodox) churches, the sacrament of Confirmation, commonly called Chrismation, is administered immediately following baptism, even to infants. It is performed by a priest using consecrated oil called chrism, and it is part of a single unified rite that includes baptism, Chrismation, and the Eucharist, reflecting the immediate full inclusion of the newly baptized into the church. The use of chrism consecrated by the bishop emphasizes the unity with the bishop and the wider church.
Moreover, the Eastern churches focus on the idea of ancient Mysteries when referring to sacraments. This highlights the profound and mysterious nature of these rites, which are seen as personal encounters with the divine. In conclusion, the primary differences lie in the timing, the minister of the sacrament, and the theological emphases associated with Confirmation/Chrismation.