The following passage is taken from Harry Potter and the Philosopher's Stone.
I cannot understand exactly what the phrase 'blazing in his eyes' mean. What is the subject of the verb 'blaze'?
There was somethin' goin' on that night he hadn't counted on – I dunno
what it was, no one does – but somethin' about you stumped him, all
right' Hagrid looked at Harry with warmth and respect blazing in his
eyes, but Harry, instead of feeling pleased and proud, felt quite sure
there had been a horrible mistake.
Best Answer
Blazing is a present participle, a verb which can be used to modify a noun. It is effectively an adjective in this form.
Blazing modifies the noun phrase warmth and respect.
As @Silenus says well in a comment, the term blazing means
American Heritage
It means show an intensity of emotion through an expression in and around the eyes.