Sentence:  Daughters of Beulah! Muses who inspire the Poet's Song! / Record the journey of immortal Milton through your realms / Of terror & mild moony <WSD>lustre</WSD>, in soft sexual delusions / Of varied beauty, to delight the wanderer and repose / His burning thirst & freezing hunger! ... 
Meaning of the word marked with <WSD> tags:  Shine, polish or sparkle.