Most forms of magical and spiritual practice depend to some degree on concentration. It is feasible to do contemplative meditation when you can’t concentrate – by having an object that you return your thoughts to, for example. It is feasible to undertake prayer or ritual with an unfocused mind, but it is probably less effective.
Spell based magic is all about your will. There’s nothing like pain or illness to reduce the power of your will, and to make that kind of focused intensity difficult to maintain. All of us will go through times when we don’t have what it takes to act magically. Some of us will be like that most of the time. So, what do you do if you want magic in your life, but can’t rely on having the attention span, the concentration, the focus or the willpower to work it?
Aim small. Ignore the useless advice that if you can’t meditate for half an hour you should meditate for an hour. Better to have five minutes of quality engagement than a longer stretch full of frustration and misery. Look for acts of magic and spirituality that operate on a scale you can handle. Look for ways of working that allow you to come back regularly and do a small thing. Don’t tie yourself to fixed times because you might not have the clarity at those times. Work when you can.
People who are hale and hearty can be very comfortable telling people who aren’t to try harder. If you are ill, the limits of what you can do are often a simple fact. Trying to push for more can often result in a backlash that lets you do even less. Only you can judge this. Experiment on your own terms and don’t feel pressured into doing things the way other people think you should.
Look for opportunities for magical experience and transformation rather than acts of deliberate change. Being in a ritual can be transformative. So can sitting out with access to trees and birds or water or sky. Having an altar and spending some time with it can make room for things to come in. So can creativity.
Pain and illness can make it hard to think that good things of any shape can happen. The longer it goes on, the more it can lock you down and make you feel limited. Looking for small moments of beauty and wonder can be a way to offset this a little. Sometimes there are blessing amongst the miseries. There don’t have to be, and it isn’t your job to be relentlessly cheerful or to find shiny blessings in a shit storm. But at the same time, there’s much to be said for making the best of what you’ve got in whatever way you can.