AtD translation: deliverance into light

[Mike Jing]

P697.10-15   Who continued to wait, all along the Military Frontier, night
and day, for the fateful breach—manning the ancient watchtowers and
recording on military maps of the region every least spark appearing in the
terrestrial night, its compass-bearing and magnitude, keeping ready the dry
tinder and paraffin for the alarm beacons, never allowing themselves more
than half a minute before deliverance into light.

I assume the phrase "deliverance into light" refers to the lighting of the
alarm beacons, is that correct?