Reading the excerpt from the "Il Penseroso" (The Serious Man) by John Milton, 5the phrase "Prophetic strain" means an effort is required to be a visionary.
The melancholic mood is glorified by the speaker as a means by which to "attain / To something like prophetic strain,".
Answer:
Banquo is in many ways Macbeth's opposite. He is kind and caring, loyal and trustworthy. Like Macbeth he fights bravely for King Duncan but does not involve himself with the murder plot. When he and Fleance are attacked his first thought is to keep his son safe.
Young Goodman Brown was dreaming