Aliveness is not a performance, and it is not loud.
It is the smell of rain hitting hot pavement, stopping you mid-step on the way somewhere you were already late for. Nobody saw it. Nothing came of it. For two seconds you were inside your life instead of managing it.
Those moments are not rare, only unrecorded. The day is full of them and most get processed at the speed of traffic. Catching one is enough. You do not have to feel vivid all day to be vividly here.