Eating gives a certain structure to a day . . . breakfast, lunch, dinner. You get to think about it, talk about it. When you are home, you get to look in at the fridge or pantries when you get up, giving you an excuse to get up as well.
I'm home for the holiday break and I am very starkly aware of the void this creates.
I think that the need to fill the void is one of the greatest impediments to a radical redesign of a lifestyle. We have a lot of scripts about what to do when, enough to fill up a life. And I think it is the second greatest power of those scripts power is their ability to fill the void. (Their greatest power comes in the comfort of conformity).
Having to fill the void is a good problem to have, but that doesn't mean it isn't a problem. And if you do not handle it well, you will be back to bad habits.
For today, it's playing Go on a 9X9 board. Tomorrow, chores around the house, and, weather permitting, garden work. After that, who knows?