Archetypes

So I googled "Collective of unconscious", and I'm going to be honest here I didnt quite understand what wikepedia was saying about it. So then i googled archetype and it explained archetypal events which are birth, death, separation from parents, initiation, and marriage. It sounds like archetypal events are life changing things that happen in your life. The jungian psychology is a collectively unconscious idea, pattern of thought and images. To me that sounds like its a dream because its "unconcsious", and you can dream about things like births, deaths, and marriages. I dont fully understand this whole theroy yet, but Im sure our Professor will give us more lectures on archetypes!