According to the Learning Center, while the glyphs are important, they are not the primary reason this site is sacred. The rock site itself is a sacred place. And today is a place of pilgrimage for local Ojibwe people. The deep crevices in the rock are believed to lead to the spirit world, as there is an underground trickle of water that runs beneath the rock which produces sounds interpreted by aboriginal people as those of the Spirits speaking to them.