Thomas was feeling more than a little emotional over his recent traumatic dream, and his less recent traumatic captive experience and death. Most of the time he dealt with it just fine, but sometimes he just needed to be alone so he could think things through. Not that he was ever especially good about doing the logic thing. Which was why he tended to make his way outside to the backyard where he could dig in the earth. Gardening had always made sense to him, and even though he wasn't a monk anymore, it was more calming than a lot of pastimes were. Gardening was simple. If you planted a seed, and then took care to keep weeds out of it's way and saw that it got water and sunlight, it did the growing all by itself. All a gardener was, really, was an interventionist. And Thomas was quite adept at that.
( Pater )