Jai Sri Ganesha,
Pilgrimage is define subject of journey to the places that enlighten with spiritual truth, the source of spiritual power either through aura of saintly wisdom or with truth of celestial conjunct,
And they charge the spirit with essential truth to make it for self,
And impart respective energy to spirit to indulge in journey with meaningful vigor,
Indeed it help spiritual aspirants to strengthen their aspiration for the cause,
May Lord bless all,
Thanks please