As kids we used to draw a line in the sand and say, “Step over this line and I’ll biff you.” If the other kid was bigger and dared to put his foot over the line, then we simply drew a new line and said firmly, “Step over this line and I’ll biff you.”
Sooner or later we had to biff up or back down. We had to make our stand in the sand.
Newspaper columnist Ralph Whitlock once wrote of a squirrel confronted by the yellow line painted on a road. Two mornings in a row the squirrel approached the line, hesitated, turned back and disappeared up a tree. On the third morning the same routine, except that this time he backed away, charged and launched himself over the line.
Yes, indeed, obstacles are often of our own making or interpretation, mere lines in the sand or paint on your path.