Seeing silk in your dream is generally considered a symbol of falling in love or being enchanted. If a powerful person is wearing silk, it may indicate their arrogance. Additionally, if the silk is yellow or red, it could signify illness. Therefore, dreaming of silk can convey important messages regarding your emotions and relationships.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Silk" (page 390).
Seeing loose silk in a dream means being enamored, or falling in love. If a person in authority wears silk in a dream, it represents his arrogance. Wearing yellow or red silk in a dream means a sickness. If a warrior wears one of these two colors in his dream, it means that he will be decorated for his chivalry. If a man of knowledge is adorned with silk in a dream, it means that he is desirous of worldly status, or that he will lead people astray through innovation. As for the rest of people, wearing silken garments in a dream means that one's deeds are worthy of paradise, though such a person may attain leading ranks and success in the world as well. Wearing a silken garment in a dream also means marriage to a woman from a noble lineage. Wearing a silken shawl without patterns in a dream is better than a cotton or a woolen shawl and particularly a patterned one. (Also see Silk merchant)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.