For me, investigation into it over the years has led me to Zen Buddhism, which though ancient seems to me almost incredibly relevant to our age.
It's a question of attention, awareness, reality & virtuality, mental health beyond the crude categories of psychiatry, desire, comfort, sacrifice, renunciation, virtue...
As someone steeped in internets and technology, this question is like a lens through which I view my whole life purpose and aspiration. And it seems increasingly relevant for everyone I know.
All this stuff is reality. It's affecting our lives, second by second. Our relationships, our selves, our life worlds. Not bad, not good, but profound and worth paying close attention to.
Here's a nice quote by Dogen Zenji:
"Even when you are uncertain, do not use this one day wastefully. It is a rare treasure to value. Do not compare it with an enormous jewel. Do not compare it with a dragon's bright pearl. Old sages valued this one day more than their own living bodies. Reflect on this quietly. A dragon's pearl may be found. An enormous jewel may be acquired. But this one day out of a hundred years cannot be retrieved once it is lost. What skillful means can retrieve a day that is passed? No historical documents have recorded such means. Not to waste time is to contain the passage of days and months within your skin bag, without leaking. Thus sages and wise ones in olden times valued each moment, day, and month more than their own eyeballs or the nation's land. To waste the passage of time is to be confused and stained in the floating world of name and gain. Not to miss the passage of time is to be in alignment with the way.
"Once you have clarity, do not neglect a single day. Wholeheartedly practice for the sake of the way and speak for the sake of the way. We know that buddha ancestors of old did not neglect each day's endeavor. You should reflect on this every day. Sit near a bright window and reflect on this, on mellow and flower-filled days. Sit in a plain building and remember it on a solitary rainy evening. Why does the passage of time steal your endeavor? What kind of enemy is the passage of time? How regrettable to waste your time because of distractions. If you do not know yourself, you will not be able to be your own ally in this great undertaking."