Japanese religiosity is not necessarily based on what one believes in, but rather on what one does or should do and what one can get out of such activities, regardless of whether the fruits are of a spiritual or material nature.
What is a pilgrim? Who is a pilgrim? Simply visiting a shrine, cathedral, temple, or other ‘sacred’ site cannot be the defining characteristic.
“On a more fundamental level, this raises the question whether ‘spiritual’ refers to a quality that may come in addition to an identification as religious, or whether the two refer to different groups and types of persons.”