What I personally believe is Psychology is all about mind and its creation (mind has only imagination that is past and future). Past is something that we have lived and future is something that we project based on the past. In a way, both are just imagination. In other words, everything that we have in our mind is just imagination.
And, all our imagination becomes reality when we focus on keenly on those thoughts and then they manifest into reality. It's always recommended not to believer our thoughts. Thoughts are simply thoughts. Pay attention to those that serve and don't to those that steal the peace away.
I've written an elaborated article on human suffering. Please find the link below:
Syed Usman Haniel