Preaching for a Non-Muslim or Woman
Scholars have said that a non-Muslim seeing themselves preaching may indicate their conversion to Islam or an imminent death. If a woman sees herself preaching and giving admonitions, it signifies the strength of her values. If her words are not wisdom or admonitions, she might be disgraced and become known for disapproved actions. The pulpit symbolizes authority, a noble status, and the Muslim community.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam