do dreams have a deeper significance

I'm writing my blog about the topic in my class i picked. My topic is about if i think dreams have any significance, personal I do think that dreams do have deeper meaning, a dream is your sub-concuss you thinking in your sleep about something on your mind could be stress, fear, a problem or love whatever it is it has you thinking about it so much you fall under your thoughts to have them projected to you like a little movie clip even tho sometimes dreams seem like they actually happened there only just eight sec long. native american believed that hallucinogenics like ayahuasca tea they thought that it reviled a deep truth or revile a key of life an answer  to a problem u have and is still used today in some country's.