If you are unfamiliar with the word - "regula" it is the Latin word for rule. Not a rule in the sense of a law or principle, but rule in terms of a "pattern." However, when a pattern becomes a normative way, then it also takes on the status of a law.
The idea of regula comes from the Rule of Benedict, which was both the pattern and the law that was established for the way the Benedictine monks would practice spirituality and their life together.

Benedict Giving the Rule to Monks
This idea of regula can be borrowed and adapted for individuals. As you begin to build a collection of spiritual practices, along with a consistent way of using those practices, you are designing your personal regula.
I have a well designed and faithfully followed regula of spirituality. It works well for me. It is the pathway by which I move into the presence of Christ and a mature salvation. I practice it consistently.
But from time to time, some variety is needed in one's regula. Just like in physical fitness conditioning/exercising, the same pattern can become monotonous (by the way, this was a problem that the monastic orders had to deal with).
The same practices can also become less productive. In the realm of physical fitness, trainers know that from time to time, routines must be changed. Muscle confusion from changing routines is a fundamental principle of fitness training.
I think, something similar, should be done in spiritual exercising. Spiritual Muscle Confusion. So, from time to time, I intentionally change my spiritual exercise regula, shift some spiritual practices around, set some aside and pick up others . . . change the routine a bit (or a lot).
A few weeks ago, I did a significant change and I have really liked this change. I'm not sure how long I will keep doing these additional practices, but for now, they have been very generative for my journey.
First, every week, I read in the novels of Susan Howatch that are a part of her Starbridge series. These novels are about the Anglican church, spiritual formation, the deadly sins - especially in the lives of pastors, directors, etc., and spiritual direction. I have found them deeply moving and launching of reflection and prayer. (Glittering Images was the first novel in that series.)
Second, I am doing a "medium wide" reading through spiritual classics and rummaging for nuggets useful for lectio divina. My normal lectio divina practice is to read a very short passage and sit with it. But I am interested in more wider reading in the spiritual classics. So, for example, right now I read 4 or 5 of the letters of Fenelon a day. In that amount of material, I find many stepping stones for reflection. I am selective and may work with half dozen of them. I journal and pray according to those thoughts.
Third, I am using a devotional book called For All the Saints. In the past, I used this, reading the texts for a day and working with those texts. Now, once a week, I take the prayer texts for the entire week, read them, notice what language and ideas move me. I use those words to shape my own prayer. I'll spend quite a bit of time in prayer that day, praying in directions and about themes that would not normally suggest themselves to me.
This change in my regula has been invigorating. I still do other things that I have done for a long time, but I have eased off in the frequency of some of those things, and am giving time to these changes.
The idea is simply to pay attention to what you are doing in spiritual formation and from time to time, considering some new things.
Blessings, grace and wisdom as you keep in step with the Spirit's leading on your formation.
Brian K. Rice
Evangelicals on the Ignatian Way
Leadership ConneXtions International
www.lci.typepad.com