Dante Gabriel Rossetti.
Sir Galahad at the Ruined Chapel.
1859. Watercolour and bodycolour on paper. Birmingham City Museum and Art Gallery, Birmingham, UK. More. 
Between dark stems the forest glows,
I hear a noise of Hymns:
Then by some secret shrine I ride;
I hear a voice but none are there;
The stalls are void, the doors are wide,
The tapers burning fair.
Fair gleams the snowy altar-cloth,
The silver vessels sparkle clean,
The shrill bell rings, the censer swings,
And solemn chaunts resound between.
(From ‘Sir Galahad’, Alfred Tennyson).