Just about every aspect. I mainly hunt but, like fishing, even a slow day has calming, Zen things about it. I love learning new stuff & being able to help my fellows here if I've gained knowledge & experience with things that can help. It's been about so much more than I ever expected or could have hoped for. Makes me HAPPY!
EDIT: I wanted to add; there's something really fulfilling & comfortable about holding & using a finely engineered & crafted piece of equipment that reliably & consistently does what it's designed to do with all the parts smoothly & solidly working in tandem with each other. It makes it a work of art, not just a tool.