>>14255812Your thoughts are nothing more than the partial interpretation of gathered sensory input. It's simply not possible to analyse every single sensory input, your brain is designed to filter this information and work on manageable chunks for short periods of time.
By the quantum nature of reality, not all brains are created equally. Random defects occur and inevitably some people are not fit for purpose.
Everyone has a huge quantity of inaccessible information stored in their memories. Dreams are a way of accessing and exploring this information in a relatively safe way, without poisoning and polluting what thought structures you have carefully created and maintained in your conscious reality.
It is no more possible to control your thoughts as it is to reverse the flow of a river.