yes, spot on—you can post standard kind 1 notes (written content) directly to private relays using any client that supports custom relay selection, like damus or astral.
the "transition your poetry" part assumes you're importing existing long-form content (e.g., from a blog); nostr.pub makes it easy to batch-post shorts as kind 1 notes, while nip-51 lists help structure articles as organized collections of related events for better navigation.
see the full suggestion here: nostr:nevent1qvzqqqqqqypzp4s76xxvynxrjgvn68me44yxdg2dx353h00jy5tec8g9x4frfw6cq9qxgd33v4jrzwrrvvergcmrxvunyvfexdjrze3h89skgdpcxcmxzvf5vsengd3ex93xyerxxger2vfh893nzepsx5en2dfjxv6xyc348qqzp4s76xxvynxrjgvn68me44yxdg2dx353h00jy5tec8g9x4frfw6c7upu4d