Forgive me if I'm a little precious about my experience, that happens at the beginning of a retreat, as I tune in.
Anandi wanted to do a lead meditation (link above) because it's been a while, so we played the full lead through by Kamalashila. Unfortunately the computer went to sleep and we probably did more than we were supposed to in the final stage, but that's not bad.
I started to get that head feeling that is hard to describe, when you're meditating a bit for the first time in a while. Someone once called it the feeling of coming out of warp speed, a reference perhaps to Star Trek. I also go hot, which sometimes happens when I meditate. I feel like I'm burning off the impurities.
I used to think about myself sledding as a child to evoke metta, and I recently went sledding and had a weirdly full feeling of metta while doing it, the sledding was infused with metta because I connect that as a time when I was happy as a child, simple happiness. Passing that on to my sons, there was a kind of fatherly love involved. There was sympathetic joy in others joy. There was compassion when people got into problems. And all the while I was not overwhelmed, just right.
We went grocery shopping. We got some flowers for the shrine.