I first learned of the word "foothold" in a sermon in Ephesians 4:27:
"Don't give the devil a foothold."
The dear pastor described it this way: "If you give the devil your foot, he'll take the whole leg. If you give the devil your leg, he'll take your whole body." Or something like that.
From then on, my imagery was like that of a crab pulling down another, somewhat like 'crab mentality.'
A foothold is nothing like that; it has nothing to do with a hand holding down a foot. Foothold ...