Of the three archaic reasons for travel - call them «war», «trade», and «pilgrimage» - which one gave birth to tourism? Some would automatically answer that it must be pilgrimage. The pilgrim goes «there» to see, the pilgrim normally brings back some souvenir; the pilgrim takes «time off» from daily life; the pilgrim has non-material goals. In this way, the pilgrim foreshadows the tourist.
But the pilgrim undergoes a shift of consciousness, and for the pilgrim that shift is real. Pilgrimage is a form of initiation, and initiation is an opening to other forms of cognition.
As I get ready to go on a pilgrimage with School of the Pilgrim, these are good words to remember.