"Saint Dominic's Preview" is the title song of the sixth album by Northern Irish singer-songwriter Van Morrison, released in July 1972 by Warner Bros. It was recorded at the Wally Heider Studios in San Francisco in April 1972, with overdubs made later on. Morrison wrote it in a stream of consciousness in the same vein as some of his earlier works, particularly those on Astral Weeks. The song's narrative moves from France to San Francisco, Morrison's place of residence at the time, to Belfast, where he grew up, to New York City ("52nd Street apartment").
Morrison revealed that the song came to him in a stream of consciousness, but only found out afterwards that a mass that was being held in a St. Dominic's church in San Francisco for peace in Belfast.He told John Grissim:
I'd been working on this song about the scene going down in Belfast. And I wasn't sure what I was writing but the central image seemed to be this church called St Dominic's where people were gathering to pray or hear a mass for peace in Northern Ireland. A few weeks later I was playing at a gig in Reno, Nevada. I picked up a newspaper, and there in front of me was an announcement about a mass for peace in Belfast to be said the next day at St Dominic's Church in San Francisco. Totally blew me out. Like I'd never even heard of a St Dominic's Church.