If you dreamed of the spaceship, then such dream indicates your creativity and imagination. If you were operating this spaceship, then it denotes to your ability to be different and unique, no matter what others thinks about you.
Dream dictionary: Spaceship dream meanings
Dreaming of an UFO symbolizes your creative mind. It reflects a spiritual journey of self-knowledge and personal development. Dreaming of a spaceship could be a warning about the need to change your perspective in your real life.
…If you saw the UFO in a dream, then it means you are trying to find the connection with your spiritual world. On the other hand, the dream could indicate how you feel around the others. Maybe you feel lost and different from others, therefore you feel like one of the UFO. The dream may also show your point of view completely different than others. To get the better explanation of the dream, please also see the meaning of spaceship….