The chronically ill already know the kind of solitude a hermit is called to get in touch with over time, though it may not be something they reflect on or come to appreciate. Those who are able-bodied are (or at least are more likely to be) less in touch with this deep solitude. They will come to know it in the various natural ways any hermit comes to know it in time, but perhaps not as profoundly; moreover, they will not be as likely to structure their life in terms of vows, prayer, and spiritual direction, that allow them to get into greater and greater touch with it. Discerning a true eremitical vocation takes real time whether one has a chronic illness or not, but my sense is that some persons with chronic illness (not all) are meant to live their existential solitude even more radically than most persons with chronic illness. I believe this is necessary for them to be whole and holy persons. It is also necessary if they are to witness to others that this foundational solitude is constituted especially by one's relationship with God lived in space and time. These persons will have discovered an eremitical vocation. Does this also make lemonade out of lemons? Yes, but it is not primarily about that, and it must be distinguished from that.
You see, for those without this vocation (and even with it), there is the question of whether one is JUST trying to make lemonade out of lemons. First of all, God can use the eremitical vocation to make lemonade, but this must still be God's project, not one's own! Was I trying to justify living as a hermit by convincing myself this was actually God's call? For me, this was a nagging question, though, through the years, it was countered more often and more profoundly than not. It took time to reach the depths of my own woundedness and discover there a Divine call to eremitical solitude, not just a neat way of justifying things that isolated me from others, prevented the use of personal gifts, or gave me a relatively restful life. The vocation to eremitical solitude is a vocation to engage with God at the point of one's existential solitude.** Physical solitude, silence, and prayer are essential helps and means to this but so are privileged relationships, for example. Still, it is a commitment to existential solitude and all that implies that defines the vocation, not merely physical solitude.
The question of I how discovered this is somewhat different. It began with an insight into c 603 and its possible place in my own life. I looked at that canon (even reading the canon at all, I believe, was providential) and began to see that it was a way of answering every question and yearning I experienced for a way to live my religious vocation that not only made space for but made sense of chronic illness at the same time. This was very like the deep insight I had had upon first attending Mass before I became a Catholic. On that occasion, as I knelt watching others go to Communion, I had the sense about the Church that "here every need I have, whether emotional, psychological, spiritual, intellectual, aesthetic, social, theological, etc., can be met." I was about fifteen years old then. But of course, the insight is not enough. It must be tested and proved.
So (the short version of things!), I began living eremitic life. As part of this, especially after perpetual profession and consecration, I also worked hard with my director to heal personal woundedness. Each major piece of work we undertook, each root of woundedness we dealt with, led to healing that was associated with the felt risk that I would discover I had been mistaken and was not really called to eremitical life as a Divine vocation. And yet, through the years, each piece of healing came with a reaffirmation that I was indeed called to this by God. (I can go into details about this ongoing discernment another time but for now, it is enough to say the Church affirmed this, my director affirmed it, and the fruits of my life and this work affirmed it.) Generally, the truth was that authentic eremitical life 1) was the very thing that called for the work we were doing, 2) it gave me the courage, will, and strength to undertake this work and sustained me in it, and 3) it was what I felt called to live upon "completion" of the work. (I say "completion" here because while we came to a significant point of healing, the work would also continue in a new key.) In any case, eremitical life proved again and again that it was the very reality that allowed for any significant healing to be accomplished. While the call to eremitical life made dealing with personal woundedness imperative, it also made it possible and fruitful for others.
The need to wrestle with existential solitude and the deepest truth of my identity throughout all of that was similar in both eremitical life, chronic illness, and personal woundedness. Each of these posed the crucial and sometimes excruciating questions of being (existence) and meaning (meaningful life) --- though in different ways; each touched on or tapped into what Tillich calls being grasped by an ultimate (or unconditional) concern and the gift of faith. The trick was teasing these apart from one another because similarity is not identity. Eventually, with eremitical life (lived well) as the context, goal, and gift that made all of this possible, we reached the depths of personal woundedness, and part of the healing there included (once again, but now without any nagging questions whatsoever) the affirmation and bone-deep sense that I am a hermit because God, through the mediation of God's Church, calls me to be one. It is, in other words, the call that allows me to achieve wholeness and holiness and be the person I was created to be.