A few thoughts.
Yes, mortification is still done and encouraged and yes it can strengthen the will over the passions.
In a way, mortification involves a mobilization of the will and the intellect and the body against the noisy passions. 3 on one!
The intellect runs the action through criteria, making a conclusion. The will forms a decision. The body carries it out. The body becomes submissive to the intellect and the will, irrespective of the complaints from the passions.
People do violence against their body’s all the time. We call these people committed athletes. Boxers take blows, wrestlers get bruised, runners get sore. “Training” happens. The body and passions end up becoming subservient to the intellect and the will.
There can be an element of pride that enters with more serious forms of mortification, and that is why it’s highly recommended that a good spiritual direction oversee and approve of any mortification. Crucial.
A good spiritual director will likely steer the average person away from some of the more exotic forms of mortification, especially for non-celibates. Celibate people need normally more self-mastery than married people.
A good director will also encourage one to “exhaust” the little and hidden mortification first.
An average day holds hundreds of little possibilities for mortification. These can be taken advantage of quietly without attracting attention.
And we should “never mortify alone”…we should mortify in the spiritual presence of God, combining our little sufferings with Our Lord’s from the Cross. He can see us suffering from two thousand years ago!
Similarly we should “never fast alone”…we should converse with God generously as we endure the ordinary setbacks and struggles of the day. We should do this out of love for God.
Some examples of ordinary, everyday mortifications include:
*]Eating a bit less
*]Eating slower
*]Delay in drinking water at your desk
*]Working for 10 more minutes before taking a break
*]Sensing the more difficult of two options and doing the most distasteful one first, perhaps an item on your todo list.
*]Smiling generously when you don’t want to
*]Getting up the instant you wake up, not hitting the snooze button
*]Double checking your work a last time, especially when you’re tired of it.
*]Cleaning off your desktop at the end of the day
*]Not browsing the internet for a whole night, reading a spiritual book instead
*]Taking the stairs, not the elevator.
*]Cleaning out your closet.