What does it mean if you dream of a dead and they are alive in your dream?

If the dream concerns a beloved relative or friend who died recently, the dream reflects the struggle of the subconscious mind to accept the reality and finality of death. The dream is an effort to restore the lost relationship.

To some extent, the meaning of the dream depends on the identity of the dead person, whether it is a beloved relative, casual acquaintance, recent celebrity, a figure from the past or an unknown figure. Interpretation also depends on the emotional tone of a dream: a terrifying apparition of a rotting corpse would be very different from an inspiring vision of a deceased loved one.

The webpage attached below provides further examples and discussion.