To dream of a gatekeeper represents feelings about someone that is being very careful about letting you into their lives or business. It may also be a sign that you feel pressure to be perfect in order to get approval or make desired progress.
Negatively, may reflect feelings of not being good enough or being impotent to meet certain demands. Fear of rejection.
To dream of being represents how careful you are being about letting someone else make progress. Permission you are withholding until certain demands or respect is paid. Protecting something special or choosing to not “let someone in” until they’ve proven themselves.