Seeing plaster in any form in one’s dream means preserving one’s dignity, holding to one’s status and position, or it could mean persevering in one’s goals. Plaster in a dream also could be interpreted as having a good marriage, good children, assiduity, concern for one’s religious duties, applying knowledge to one’s words, ability to appreciate and to express one’s gratitude, recovering from an illness, buying new clothing, or drafting a just agreement. Gypsum in a dream has the same interpretation. If a renunciate or a pious person sees plaster or gypsum in his dream, it becomes a proof of an unlawful or sullied substances mixing with their earnings, or it could mean engaging in religious innovations, neglecting to follow the prophetic example, or becoming a hypocrite. (Also see Plasterer)
Read more about dreaming of Plaster in other dream meanings interpretations.