Can our perception shape outer realities?

How we see the world may not have immediate effects to our surroundings or environment, we usually look at and judge any results at physical, tangible level, but one thing is for sure, our perceptions of the world inevitably shape our actions and decisions in the world, and how we interact with the environment. In the so called butterfly effect, any tiny decision that we made has unforeseeable implications to the universe, it creates a chain of causes and effects, like a ripple effect in a sea of waves, however tiny, or may somehow dissipate away, but does play a part in shaping the universe. The Buddhist, in one of their scriptures, the Avatamsaka Sutra, did describe a condition whereby a person's thought and idea shape his/her reality. In a way it is true, each person's reality and the perception is a cycle of chain of causes and effects that shape that reality. If a person projects a positive and optimistic world, even bad fortune happens, the person may still takes positive action to change the situation he/she is in, because of a project of positive outcome and future, a wish or an imagined result. If a person reacts on his/her negative emotions with negative action of hate and sadness, the subsequence actions may reinforce what is already projected to the world around and further resonances from the environment results. That's why in most religious thoughts in the world, there is the emphasis of the turning of the mind, changing the mind, or renewing of the mind and thinking, especially in hard time that stimulates the reactionary body. In Christianity, the idea of 'repentance' is really about the turn of the mind.