I think what she calls "lumps" I think of as obstacles. I tend to see the week like a show jumping course. I have my regular hurdles to clear, i.e. Monday, Wednesday, Friday and Sunday mornings all have routine commitments. These are nicely spaced out and if I don't have any of those, for example over Christmas or the summer holidays, I find life too unstructured and tend to flounder. Also, if things are getting too much, none of those sessions are essential and can be missed if I need some down time.
However, though I need some structure, if too many other "fences" get inserted into the week, I start to feel trapped and claustrophobic and each "jump" feels like a huge effort. This week was such a week, though the Monday afternoon meeting was postponed, I've prepared for the meeting tonight in which I have to introduce the person running the event, and the meeting tomorrow morning shouldn't be too demanding. By tomorrow lunchtime, I can heave a huge sigh of relief as I'm back to just the usual commitments.
Thankfully, next week should be just a normal week.