So then, in the interest of furthering the discussion (and since I originally texted with intent to elaborate anyhow), some more details on the topic.
First off, I'd like to clarify what I was talking about when I mentioned being comfortable. The comfort I'm talking about is not a simple issue of having a pebble in your sock or not. Discomfort borne of basic physical pain is not the issue at hand here. I'm more concerned, right now, with the more philosophical idea of comfort. The comfort people are talking about when they ask "Are you comfortable with your life right now" or "Would you say you lead a comfortable lifestyle". It's not a question of are you seated comfortably, free of major physical pains and properly balanced, but more a question of the situations in your life right now and your relation to them.
Further, when I mentioned defining terms I wasn't talking of what you might find in the OED or Webster's. I was referring more to the "requisites" idea of "definition". Such as having a degree requires that you have gone through some sort of course of study. Sure, the OED style definition of having a degree is just that you possess a specific piece of paper that is called a degree, but there is also the idea that the definition of having a degree is having done something to get it. That is "what it means" to have a degree, beyond just the literal definition.
Thus, when I said that to be comfortable can require redefining being comfortable, I wasn't calling for a protest at the OED headquarters so that we won't have to worry about a pebble in our shoe making us uncomfortable any longer (though perhaps it would make as good an excuse to visit England as any, I suppose, and could be fun). I was instead pointing to the idea that there are some situations in life where you can be quite uncomfortable and it can be more helpful to investigate why this is and what it means for you to be uncomfortable with your life than to attempt to somehow remedy the discomfort based on the previous thoughts and beliefs you have held which made you uncomfortable in the first place.
This more verbose way of putting it would most certainly not fit in an SMS message. :)
An example, perhaps, can be illustrative.
Some people think that a comfortable lifestyle requires lots of things. At one point in my life I felt having a decent music collection (and reasonable equipment to listen to it with) was a requirement for a comfortable lifestyle. And to be honest, it did give some comfort. It was nice to have keen music to listen to while I'm walking around, or taking pictures, or whatever else I was doing. I had a nice large iPod filled with many different styles so that whatever mood I was in there was a great soundtrack to go along with it. This was all well and good, but in spite of this I would sometimes find myself quite uncomfortable. Not just with life, but with my music collection. So I would go get more music, different types of music, different groups of the same type, minor variations on a theme, whatever I could. And it worked, for a little while, to hide the underlying discomfort. But in the back of my head there was still this knowledge that something was not quite lining up right. It wasn't until recently, when I questioned the very assumption that music was part of comfort, that I realized this. I had previously placed music in the requirements for a comfortable lifestyle, and it was this itself which led to my discomfort. Now I have changed that. Music plays no part in my idea of what comfort is, what it means to have a comfortable lifestyle, and thus I find I am able to be comfortable without music at all. I spend days, weeks, even months without music and I don't feel a need to put anything on to change that. Previously I would be compelled to have music playing all the time, and was looking at ways to get music in to more and more parts of my life. That's not comfort, that's compulsion. Similarly, though, it is worth noting that if I were constantly fighting to not have any music in my life then that too would be a compulsion, just of a different sort. I can listen to music, if it happens to be playing or if I hear about a new band and am interested to see what all the fuss is. I still am able to appreciate music. I still have some music and will put it on every now and then, but it doesn't really hook me like it used to. That fundamental requirement, that part of the definition of "comfort" which music played, is gone.
Thus I have, to that minor extent, redefined what comfort means to me. And as a result of the changing of my personal definition of comfort, I find I am now more able to be truly comfortable. This does not mean I am free of physical pains. This does not mean I am not frustrated or upset by some actions I see from those around me or myself. But these are different issues.