Why do we daydream?
Daydreams allow your mind to run freely and even increases productivity in some cases. Remember in class there was that one kid who was doodling or staring out the window and the teacher would usually yell at them for not paying attention? Well, it turns out, these kids might have had the right idea. Daydreaming enhances creativity which is why you have an ah-ha moment and sudden insight about a situation. Daydreaming allows your to uncover thoughts and ideas you did not realize you even had and looks underneath the surface thoughts. Your mind in a way becomes unhinged is allowed to roam freely.
Daydreaming is a great exercise because it gives you an outlet to imagine scenarios without risk or any real consequences. When you daydream, you can make new associations and connections from your conscious mind to unconscious thoughts which can help you in a situation that you have been thinking about for a while. When you daydream you escape your reality even if only for a short amount of time. Daydreaming is an essential cognitive tool to help us explore our inner experiences.
https://blog.cognifit.com/daydreaming/