Thistle 
To dream about a thistle signals your desire to feel safe. It's possible that you are erecting blockades to keep others from getting too close.
Unicorn
To dream of a unicorn represents insight, trust, and high morals in a current position. It also symbolizes clarity, calmness, and control. On the other hand, it may represent your own biased views.
Centaur
To dream of a centaur represents the two sides of the personality. You are attempting to find harmony between your emotional and physical attributes. The centaur also symbolizes intelligence, empathy, and civility.
Lavender
To dream of lavender symbolizes holiness and spirituality.
Stallion
To dream of a stallion represents control, intensity, valor, and liberty. If you are riding the stallion then it means that you possess or will possess these qualities.
Amethyst
To see an amethyst in your dream indicates that you are pleased with the aspects of your life pertaining to finances and your personal happiness. You don't require many material possessions to be satisfied. What you own is enough to keep you comfortable throughout your life.
To dream that you lose an amethyst is a warning that you will face failures when it comes to relationships and matrimony.
Carousel
To dream that you are joyfully riding a carousel may suggest a childlike sense of joy and confidence in your parent's approval of your life choices.
To dream that you are on a carousel and unable stop or slow down so that you may dismount indicates disillusionment about the cycle of life and your place within it. Alternatively, you may be experiencing a lack of control and boredom at the repetitive nature of your waking life.
Burgundy
Noticing the color burgundy in your dream symbolizes warmth and comfort in your life. Furthermore, noticing that a particular object or room is colored in burgundy implies that you're feeling good, positive and warm towards that object or place.
Blackberries
A dream in which you see or eat blackberries means that you are acting without caution. It is also symbolic of repressed carnal urges.
Aurora Borealis
The appearance of the aurora borealis in a dream symbolizes an uplifting of the spirit and feelings of affection and passion.