a open minded person - someone that is not confident of what him or her self is and is ready to experience and absorb as much as there is for them to take it. therefore the open armed approach towards everything so they can deduce what sort of person they are. i.e teenagers

a close minded person - someone that knows what he or she wants and that their decisions or perceptions are the utmost correct above everyone elses because they think they have experienced it all. they shuts off every entry of new inputs because they know they are better than most, hence the glass ceiling above them therefore making them very unreceptive of improvements of sort. i.e mom and dad