The scene of enamoration; the nymph in the wood, felt, more than seen, in the sun dappled foliage...the memories are felt. (Paintings should be felt before they are seen, also.)
It is the coming on of the ending, always, that causes movement, causes a moment.
The Buddha says, "it is birth, that causes death..." (says old Jackie K.)
and we try, and we try to hold on to one another, and beauty, and the dappled sunlight, one fall afternoon, a girl, a special hidden place in the wood, a feeling, life.