Dreaming of idols is both good and bad as per dream meaning and interpretation. If the dream is of someone who you adore blindly and excessively (like music idol or film star) then it means desire fulfillment. Dreaming of idols of god is associated with desire fulfillment and prosperity.
Dream of idols of whom you wanted to see in person but you are not in the dream means missed opportunity. It also means disappointment.
Dreams of idols and you are present in the dream means visit to crowded place. It also means hectic activity in near future.
Dreaming of lot of idols of gods scattered around is a sign of questioning your beliefs. It also means coming under the influence of atheists or non-believers. It also means attempts will be made to wean you away from your current religion or beliefs.
Dream of offering worship to god idols is a sign of peace and mental strength. It means you will be determined to correct a wrong.