Distress.
When you're sailing on the sea and the clouds suddenly fly in and the waves roll high.
Stranded on the water.
Can't see land- getting too dark. Don't know where where you are.
And there's nowhere to go,
nowhere to escape the storm.
That's distress, that sickening, heavy feeling in your stomach when you're in trouble and can't do anything to save yourself.
But then you see the lighthouse.
And it leads you home.