The spelling of "hadst vision" can be disorienting for those unfamiliar with archaic English. "Hadst" is the second person singular past tense form of "have," and is pronounced /hædst/ in IPA phonetic transcription. "Vision" is spelled in modern English and pronounced /ˈvɪʒən/. Together, the phrase means "you had a vision" in older English. It's important to note that while these types of spellings are commonly used in literature and historical texts, they are not used in modern English communication.