My experience with both my parents is that grief has a lot of down sad things but I was also really emotionally raw in the first year after each of them passed. Flowers smelled more intensely my relationships were hotter and I was more willing to risk. I was going for it a lot more. I was 'unsober' and I wasn't playing by my rules.
We didn't set out to be educators or even scientists and we don't purport that what we do is real science but we're demonstrating a methodology by which one can engage and satisfy your curiosity.