Dreams are a funny sort of thing aren't they. If anything they get us to question this or that. Sometimes they offer a great bit of laughter. Many times they open the mind to possibility. At times they reveal fear and other times they seem to present solutions leading away from fear.
Science shares we remember only those dreams from the 4th stage of sleep known as REM, yet dream in all four stages. That 4th stage is heading toward awake or cognitive consciousness. Cognition is awareness of thoughts, the senses, and memory basically and knowledge is acquired. That offers the question is a dream experiencing knowledge or recalling knowledge?