There's still life out there

Come, my friend;
we still have the light;
for darkness came
and some are not here to fight;
I know it hurts,
but I will help you move;
I'll bind your wounds
and your heart I'll soothe;
just lean on me
and I will do my best;
till the broken march,
to the drum beats from your chest;
Yes! Two then four, six and even more;
shall hear your sound,
and rise from off the ground.