Triangle 
To dream of triangles signifies your goals, potential, and truth. It is also a symbol of spirituality and oneness of mind, body, and spirit. On one hand, it may also refer to a love relationship you have with two other people in your waking life.
Hexagram
To dream of regular and balanced shapes like a hexagram often symbolizes balance, stability, and harmony. This applies to relationships between opposites - male and female, mind and heart, spiritual and physical.
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