When Life becomes harsh,  painful with lots of struggles.
A drowning person barely able to hang onto the lifebuoy.
Still struggling to stay a float , yet becoming more nervous.
That the ship will not get there in time to save you from death.
This is the way that some struggle with spiritually as well.
Afraid that they shall miss out on the miracle seconds shy of it happening.
They are afraid that they shall fail Christ by giving up too soon.
That they shall end up dying and ending up in hell because they gave up too soon.
Also it could have to do with healing as well giving up too soon.