according to this :
nature of the mind is created by matrix, potentiator, catalyst and experience of mind. its also called 'significator of mind'. its told to be both actor and acted upon.
definition means that the nature of mind is something that forms through all the fundamentals of the mind, and its experience. it seems to be the significator of the mind - which is the thing that manifests, acts and we know as the 'mind' from surface.
very much think that this is quite easily the mental processes, behavior patterns, reactions we employ in our earthly life. the 'race' or 'culture' of our mind, on this planet - compared to other planets.
this should also pass valid for greater minds of this locale - racial minds, planetary mind.