Source: http://www.publicbookshelf.com/fiction/great-gatsby/younger-vulnerable-3Instead of being the warm center of the world, the Middle West now seemed like the ragged edge of the universe-so I decided to go East and learn the bond business. Everybody I knew was in the bond business, so I supposed it could support one more single man. All my aunts and uncles talked it over as if they were choosing a prep school for me, and finally said, "Why-ye-es," with very grave, hesitant faces. Father agreed to finance me for a year, and after various delays I came East, permanently, I thought, in the spring of twenty-two.
Would you please tell me what the blue part means? I can't make head of that.