Opus Dei members practise different forms of mortification, including corporal mortification.
Numerary and Associate member do use a small spiked chain called a cilice, which is a small, spiked chain worn around the thigh under one’s trousers, for a period of time each day. I believe that it is not worn for more than two hours at a time, and I do not believe that it causes serious physical pain, more like discomfort.
Some members (the numerary members, I think, though I am not sure if this means all of the numerary members) also practise flagellation, using a discipline made of knotted cords, and sleep on the floor once a week.
You will find this all shocking or not, depending on your understanding of these forms of physical penance.
The members of Opus Dei do everything with the guidance of a spiritual director so, in theory at least, there’s always someone to keep an eye on things and make sure that the individuals performing these penances are keeping things in perspective, while encouraging other, less mature individuals to seek other forms of sacrifice and penance. We should hope so at least.
Our degenerated culture, which has a horror of discomfort and pain, and which sees no value whatsoever in suffering, is incapable of understanding or accepting these things. Opus Dei is not the only group that employs them however; they have traditionally been part of monastic life, and even contemporary holy men and women such as Blessed Mother Teresa of Calcutta, St. Padre Pio and Archbishop Oscar Romero have employed them too.
I will admit that I myself approach the topic of cilices and disciplines with more than a little caution… there is great potential there for emotionally immature individuals to do themselves a great deal of physical and psychological damage. And there’s
always the danger of spiritual pride involved in these kinds of activities. One should never undertake these kinds of penances without the permission and guidance of a very wise and holy spiritual director. For most ordinary Catholics, they are not necessary… fasting and abstinence are much more prudent choices and much less dangerous for the person who wants to deepen the penitential dimension of his or her spiritual life.
IMHO, anyway…
