We mortals do tend to imagine and/or build boundaries or pens in all sorts of ways. Things we think we can do, things we think we cannot do. And so on.
And no doubt that tendency would carry over into our association with others. Some people raised in a certain belief - whether theology, ideology, philosophy or whatever - may imagine that to be their boundary.
Jesus Christ is both the Door and the Good Shepherd.
I am the door: by me if any man enter in, he shall be saved, and shall go in and out, and find pasture.
The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have [it] more abundantly.
I am the good shepherd: the good shepherd giveth his life for the sheep. - John 10:7-11
He maketh me to lie down in green pastures: he leadeth me beside the still waters. He restoreth my soul: he leadeth me in the paths of righteousness for his name's sake. - Psalms 23:1-3
To God be the glory!
Yes.. its quite wonderful.. that you can be so free yet limited to freedom.. For he makes a door out of every situation unless we are to stay put.. because he is staying put.. Jesus metaphors all say much more than the sum of the words.. It is quite meta physical.. possibly even infra physical.. at the same time..