Familiar Blaise attributes here include the mitre, crozier, and
candle. The martyr's palm, lower right, is very unusual in Blaise
images, as is the sword. Nor is it common for the crozier to lie
on the floor.
From the clouds at the top of the composition a triangle
representing God sends rays toward the saint. These may represent
God's words to Blaise on the eve of his arrest, revealing that he
is about to "drink from the cup" of martyrdom. As befits this
eucharistic metaphor, Blaise stands at a sort of altar while
hearing this revelation.
The chained man in the background is St. Eustratius, to whose
prison cell St. Blaise brought the eucharistic host on the eve of
Eustratius' martyrdom. Lying before him is the boy who had a fish
bone stuck in his throat.
More of St. Blaise
This image in full