I hate to say it, but most of the posts are wrong.
Opus Dei is very controversial because of their extreme acts of penance.
They believe in intense mortification of the flesh.
This includes fasting, sleeping on the ground, taking cold showers, jumping out of your bed at the first morning alarm, wearing a cilice(A belt with small spikes that poke your skin, THEY HURT), and striking your back with a disciple(Think of the Scourging at the Pillar, but instead you are scourging yourself and the scourge is made of rope).
Here are some of their instruments of mortification:
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This is an unfortunate characterization of mortification. I am a supernumerary member of Opus Dei.
We all should be ‘on the search’ for small acts of offering or mortification for Our Lord, always. We should offer Him all our day, all our work, all contradictions of life, annoyances…flat tires, dirty diapers, hard jobs, things that break, schedules that change, uncooperative weather, etc.
All of these moments should be and can be real and intimate encounters with Christ. We meet Him in the ordinary. This is the message and spirit of Opus Dei.
Gaining more self mastery over our appetites and passions isn’t a bad thing…isn’t an Opus Dei thing…all Catholics should strive for a greater dominance of our intellect and our will over our passions and appetites. This dominion was lost by virtue of Original Sin, and will always be a struggle for us. We will be tired and not very eager to love others when we are tired, or our body rebels, wanting us to turn inward.
Mortification is wrongly considered as “whips and cilice”…there are many many forms of mortification.
Fasting is a form of mortification. Smiling when we don’t want to is another one!!
In Opus Dei, only the numerary members of Opus Dei are typically allowed to engage in stronger means of mortification, always under the direction of their Spiritual Director.
As celibates and without spouses their “journey” is a harder one, little ‘compensation’ or ‘consolation’ is afforded by their chosen (their own freedom) vocation. They need greater self mastery.
The life of a numerary member is also much more demanding, apart from the celibacy commitment. Numerary members hold “real jobs” (corporate lawyers, professors, medical doctors, engineers, scientists, teachers). They work hard all day long, turning all the work into prayer, and then they return to their Center and give classes in the evening, give spiritual directions, prepare talks, attend to their own further formation, and other “work”. Long days, but for them very happy and joyful days…because they have learned how to pray through their work. “Unity of Life”.
This is a very demanding life.
Finally, the more deliberate means of mortification…fasting, cilice, the discipline…really are not the actual preferred means of mortification. They are done for sure, but over time, one should struggle to turn more and more of one’s ordinary circumstances into offerings, “extracting” if you will spiritual value from all annoyances, pains, contradictions of the ordinary day.
Mortification is a positive thing…a cheerful thing…meeting Jesus along His way of Calvary, letting our own bodies…its reflexes and so forth remind us to converse with God.
It seems odd to people…but mortification is badly misunderstood and made into a caricature. We are told in Scripture to “rejoice always”…and so we must learn how. That’s what Opus Dei can teach…how to not run from these difficulties…these meetings with Jesus, but how to unify ourselves with Jesus THROUGH the ordinary circumstances.
So many people diet, punish their body in the gym…and it’s seen as a normal thing…but taking a cold shower, parking farther away, smiling at the beginning of a very hard task…and offering these efforts to God is seen as weird.