Final answer:
A religious journey to a place of significant spiritual importance is called a pilgrimage, and those who partake in such journeys are pilgrims. Pilgrimages like the Islamic hajj to Mecca are integral to various religious practices.
Step-by-step explanation:
The journey taken for a religious purpose, often to a place of religious significance, is called a pilgrimage. People who undertake these spiritual journeys are known as pilgrims.
A pilgrimage can be practiced for various reasons, including answering a prayer, forgiving a sin, or seeking healing. Well-known examples include the Islamic hajj to Mecca, the Christian journey to the Sanctuary of Our Lady of Lourdes, or the Hindu pilgrimage to the River Ganges.