What does it mean when one dreams that a dead person is still alive?

Dreams of the deceased are common and normal when one is grieving a loved one. The subconscious mind can struggle to accept the reality and finality of death, and uses dreams as a way to continue to be with the dead person. These dreams usually fade with time, but might occasionally recur over the years.

They have been closest to you and they've come to keep you company and these dreams can last a lifetime too.