When you are doing things. Seems simple, maybe even simple-minded, but I do think it's true. Being engaged, occupied, on the hunt, running down a dream, owning up to the moment, meeting the day with all your faculties focused on getting stuff done, throwing yourself into the tasks at hand.
Being busy, being born, every moment. There is possibility in that approach. Less time ruminating over the past, or speculating on the future, being alive in the moment, now. It is sort of a Zen way to live.
Every task can be approached with a fiery determination. Funny, it can be something really excellent like writing a song, or discovering a new riff on your guitar, playing music with your band in the rehearsal room, or alternatively, it can be bit more homely and practical, like mopping the floor, cooking a meal, rearranging your sock drawer, emptying the recyle bin. Doing your best, no matter what task, to be excellent in all ways.
Paying attention to the details, no matter how small or seemingly inconsequential. Everything counts in this Universe. Honor the moments while you do. Yes, doing things, it really is the Good Life...