Yes you can change even your deepest most fundamental beliefs but it requires equal deep fundamental desire to change. For example, having a baby that's asthmatic might be the motivation to quit cigarettes - something the person never could before.
A near death experience ran radically alter one's perceptions on life. So can a disastrous relationship or winning a lottery.
But can you do it without life giving you a kick in the groin first? Yes. The human brain cannot distinguish reality from vivid imagination. Ever remember doing something and then realized, no wait, that was just a dream? If you really want fundamental change in your beliefs you can consciously do so but it requires associating current beliefs with negative outcomes and a new belief with a positive outcome and vividly seeing that outcome in your head consistently over time until it takes hold.
Basically, that's what we always do, whether we are conscious of it or not.







