The idea of sacred travel runs deep in religion, dating back to when early humans would climb hilltops to be closer to God, or got to a specific spot to dance around in circles. People go on pilgrimages to bring themselves mentally closer to God, and to strengthen their faith with God. Many people believe that by going on a pilgrimage they will do penance (making up for sins). Some just want a religious experience, go on one for thanksgiving, or want to show devotion by making an effort and possibly suffering.
