Dream of any planet, is not so good. It’s a sign that you will have difficulty in dealing with people from your surroundings.
They will disappoint you and you will be sad and lonely. Do not let this upsetting, it will soon be resolved positively.
A planet (from Ancient Greek ἀστήρ πλανήτης (astēr planētēs), or πλάνης ἀστήρ (plánēs astēr), meaning “wandering star”) is an astronomical object orbiting a star, brown dwarf, or stellar remnant that
is massive enough to be rounded by its own gravity,
is not massive enough to cause thermonuclear fusion, and
has cleared its neighbouring region of planetesimals.
the planet : the planet Earth