The past isn’t here anymore and the future hasn’t arrived yet. We can only live fully in the present moment.
Of course, we have been shaped by our past and we have projects and desires for our future, but we only have power -if at all- over our present.
It is in the here and now that we can fully connect with our senses, that we can experience touch, see, taste, listen, and smell. It is in the present that we can indulge in whatever gives us pleasure.
When we begin to appreciate transience as a virtue, when we accept that every little thing eventually comes to an end, we eventually learn to appreciate every new beginning and also every end. We release control (or, better put, the illusion of it) and we surrender to the beauty of the now.