Dreaming of waking up in an unfamiliar house with 15 people, half of whom you recognize, can symbolize a sense of disorientation and confusion in your waking life. The unfamiliar house represents a new or unfamiliar situation or environment that you find yourself in. The 15 people may represent different aspects of yourself or different people in your life. The fact that you recognize half of them suggests that you are able to find some familiarity and comfort in this new situation. However, the other half of the people may represent unknown or unfamiliar parts of yourself or people in your life that you have yet to fully understand. This dream may be a reflection of your feelings of being overwhelmed or out of place in a new situation, but also a reminder to embrace the unknown and trust in your ability to adapt and find familiarity in unfamiliar surroundings.