Definition of "pilgrimage"

Rome, the mighty mother of the Christian faith, whose amphitheatres had been red with the blood of the saints, and where the pilgrimage and the miracle still testified to the truth.

1834, L[etitia] E[lizabeth] L[andon], chapter XVII, in Francesca Carrara. […], volume I, London: Richard Bentley, […], (successor to Henry Colburn), page 187

It was like a weary pilgrimage amongst hints for nightmares.

1899 February, Joseph Conrad, “The Heart of Darkness”, in Blackwood’s Edinburgh Magazine, volume CLXV, number M, New York, N.Y.: The Leonard Scott Publishing Company, […], part I, page 204

Quarians are surgically fitted with their various immunity-boosted implants in preparation for leaving on Pilgrimage.

2008, BioWare, Mass Effect (Science Fiction), Redwood City: Electronic Arts, PC, scene: Quarians: Pilgrimage Codex entry

For fans, the shows are a pilgrimage, and a rediscovery of the joys of mass gatherings.

2023 August 5, Ben Sisario, “How Taylor Swift’s Eras Tour Conquered the World”, in New York Times‎