Doors are access points to new rooms or buildings. Regardless of whether the doors are locked or not - you have to open them. So an unlocked door is not access per se. Logical. But if I want to open the door - and I mean a conventional door that is anchored in the hinges on one of the two elongated sides - I have to step aside when opening it - otherwise I can't open the door past me and get in the way of myself doing what I want to do. This can also be used as a good illustration in a figurative sense: if I want to go new ways or get to know new areas, it may be that I first have to take myself back, stand aside, so that the door through which I want to go can be opened. In this way I can avoid - again allegorically - standing in my own way. Perhaps this illustration will help you in a current situation.
I wish you an extraordinary day!