It actually really reminds me of when my sister was ill a few years back. I think the overall lesson is the mantra you hear a lot from those suffering from long term serious illnesses - "one day at a time". That was certainly how we faced the illness back then, and with recent tragedies in my life it is most definitely how I having been living for the past few months. I really don't want to get too far into it, but this is another example of how the XKCD stories hide real human problems behind their simple stick-figure appearance. I love this comic. I suggest you check it out.