Don't care too much about dreams. Your dream should mean that you are related to Buddha, especially Guanyin Bodhisattva. It may also be a memory of the past. You may have done good deeds for Buddhism, or worshipped and studied Buddhism.
If you like, you can start to learn Buddhism, read the name of Guanyin Bodhisattva, or read Buddhist scriptures such as Pumenpin, Heart Sutra and Great Compassion Mantra.