1316  confirmation perfects baptismal grace; it is the sacrament which gives the holy spirit in order to root us more deeply in the divine filiation, incorporate us more firmly into christ, strengthen our bond with the church, associate us more closely with her mission, and help us bear witness to the Christian faith in words accompanied by deeds.

(excerpt taken from Catechism of the Catholic Church; copyright © 1994 Concacan Inc., Canada)