It’s a well known saying:
Seeing a Light at the End of the Tunnel.
Like facing a solution,
a sign of hope,
approaching an important change;
light after a dark period.
To someone it happens once in a lifetime
other ones experienced it a lot of times.
During my holidays in Italy
I drove through
a 700 meters long tunnel.
The road was a straight line,
so all the way down I could see the Light at the End:
from the start, a small white point that grew bigger and bigger.
A New Life started that day.