“… the holy Apostle has said from his great love; everyone’s sickness was his own, everyone’s offense was his own, everyone’s weakness was his own. In these wise words of the wise man we see that fellow-suffering is a kind of Cross. Now there are three kinds of martyrdom that are counted as a cross to us, namely, white, blue and red martyrdom.
[It is white martyrdom for a man when he separates from everything that he loves for God, although he does not endure fasting and labor thereby. (1)]
"The blue martyrdom is when through fasting and hard work they control their desires or struggle in penance and repentance. The red martyrdom is when they endure a cross or destruction for Christ’s sake, as happened to the Apostles when they were persecuted the wicked and taught the law of God.
"These three kinds of martyrdom take place in those people who repent well [blue], who control their desires [white], and who shed their blood [red] in fasting and labor for Christ’s sake.” (Celtic Spirituality, ed. by O. Davis, T. O’Loughlin, Paulist Press, 1999, p. 370)