Seeing Tahayyat in your dream signifies that you are reaching an important moment in your life. It indicates that you are connecting with your thoughts and feelings. This dream offers you an opportunity to express your personal prayers or emotions. If you desire change in your life or wish to do something for others, this reflects that intention. It also symbolizes your soul's peace and satisfaction.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Tahayyat" (page 427).
The last segment of the regular Islamic prayers which is recited in a sitting posture. Once completed, one may ask for his personal needs or pray for others. If one reaches this segment of his prayer in a dream, it represents a condition or an agreement that must be fulfilled between two partners, or it could mean finding a guardian for one's intended wife (i.e., her father, uncle, brother, etcetera), without whom the marriage is not legitimate. Reciting the Tahayyiit in a dream also means bartering material property for spiritual gains.
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.