Cloud Easton, inquiring thoughts on Navajo

In Lane's writing he talks of among the most difficult trials for a boy to learn in becoming a man is to "being seen and asked to discern and name every holy place which could be seen." This interests me in that I wonder just how many holy sights did the Navajo actually have? I understand the importance of holy and sacred places, especially within the context of religion, but then to have as many as it could be hard to name them all? I guess my confusion comes from the thought that if a group of people had so many places considered sacred then wouldn't each of such places lose some its importance as to the sheer number of them?