If you’re about to take a sea voyage, this may indicate some hesitation on your part, especially a fear of trouble at sea or a fear of drowning (see Boat, Water). Alternatively, this may portend a safe vacation.
If you have been in distress, this dream shows that hope is on the horizon, and recovery will come.
A guiding energy’, akin to an angel (see Light).
If someone is standing at the top of a lighthouse, this can be an alternative tower or balcony dream that implies that you are the one sending out a message of hope or help.... The Language of Dreams
Vision: Seeing a lighthouse by day: your chances for the future are getting better because you can see things more clearly. It also is a good sign of a happy homecoming.
If the lighthouse is flashing: pay attention to the advice of a friend—it might save you from a bad experience.
Depth Psychology: The lighthouse is usually a warning of impending danger. It might also be your unconscious pointing you in the right direction when you are “in the dark.” See Light.... Dreamers Dictionary
Dreams of a lighthouse represent inspiration, and that you are being reminded of who you really are and why you are here. Dreams of a lighthouse are also a warning to use the light of your awareness to circumvent challenging circumstances.... Strangest Dream Explanations
Psychological / emotional perspective: A lighthouse can act as a beacon and can lead us into calmer waters. It is also a warning system, and in dreams it tends to warn us of emotional difficulties. It can often have this significance in dreams whether emotionally or spiritually.... Dream Meanings of Versatile
Material aspects: It will depend on whether we are aware in the dream of being on land or at sea.
If we are on land we are being warned of difficulties to come, probably from our own emotions.
If we are at sea we need to be careful not to create misunderstandings for ourselves by ignoring problems and be sure to steer the right course. You might also like to consult the entries for beacon, light and tower.... Dream Meanings of Versatile