to disappear (of people or animals); to go (away); to leave; to no longer exist
total darkness; pitch dark; bleak future; poor prospects
one's house; one's home; one's family
gradually; slowly but steadily
to advance on; to close in; to march on; to descend on (the enemy); to move towards; to surge forward (crowd, wave of nostalgia, wave, etc.)
reality; actuality; hard fact
will; volition; intention; intent; determination
necessary; needed; essential; necessity; need; requirement