Dreaming of bramble means being lost and out of your comfort area. Whether it is your career or your relationships, you are not getting anywhere without a finite goal.
Normally you are in control, however you may have overreached and the bramble dream indicates you are out of your comfort area. Try tightening up your responsibilities to something more manageable.
In your waking hours, the recommended route is to regain control over the things you can control, while letting others do as they like.