To see an UFO in your dream signifies your desires to find your spiritual purpose in life. Alternatively, it indicates that you are feeling alienated from those around you. The dream may also be a metaphor that you are acting “spacey” or “spaced out”. You need to be more grounded and come back to reality.
Dreaming that an UFO is attacking or invading the house of someone who passed away indicates that this person was suddenly taken away from you too soon. It also suggests that this person was mentally deteriorating.