Do unseen entities actually exist?!

It might sound crazy, but invisible entities might actually exist! Think about it: the universe is thought by science to consist of at least four dimensions, if not more. So it's viable that many unexplained phenomena which people see, for example, during hallucinating (such as during an episode of schizophrenia) might actually have more to them than we probably usually think. We can't see much of the EM spectrum, and in fact, modern scientific equipment cannot even see specific light wavelengths when talking about terrestrial observation; one such example of such light is such as gamma rays, which is an example pf what invisible "stuff" here on Earth might interact with, while not being able to interact with other forms of light! I personally would like to think about unexplained phenomena actually existing out there, even on Earth, even though my logical and critical thought processes might go against that kind of thought. I think that we need to balance science with spiritualism, because I think that there is something more to spiritualism than we might initially see at the surface! I think that there might be a world, perhaps in another spatial dimension, that exists out there. I think that whether or not "aliens", or instead, other dimensions exist, could depend on our thoughts; for our thoughts might actually form, or at least influence, the material world. In a higher dimension, things might actually respond to our thoughts. I think that we need a new age of thinking. We need more people who are freethinkers in this world!