We should understand that when the Priest or Bishop blesses us, he forms his fingers to represent the Christogram "ICXC" a traditional abbreviation of the Greek words for "Jesus Christ" (i.e., the first and last letters of each of the words "IHCOYC XRICTOC"). Thus, the Priest's blessing is in the Name of Christ, as he emphasizes in his response to the believer's request for a blessing. Other responses to this request are used by many clergy, but the antiquity and symbolism of the tradition which we have presented are compelling arguments for its use. We should also note that the reason that a lay person kisses the hand of a Priest or Bishop is to show respect to his Apostolic office. More importantly, however, since both hold the Holy Mysteries in their hands during the Divine Liturgy, we show respect to the Holy Eucharist when we kiss their hands. In fact, Saint John Chrysostomos once said that if one were to meet an Orthodox Priest walking along with an Angel, that he should greet the Priest first and kiss his hand, since that hand has touched the Body and Blood of our Lord. For this latter reason, we do not normally kiss the hand of a Deacon. While a Deacon in the Orthodox Church holds the first level of the Priesthood (Deacon, Presbyter, Bishop), his service does not entail blessing the Mysteries. When we take leave of a Priest or Bishop, we should again ask for a blessing, just as we did when we first greeted him.