Belief's in the supernatural

I am an engineer by profession and take keen interest in developments of modern science especially physics.But I believe that there are men living in himalayas for thousands of years. I believe that it is possible for yogis to produce materials out of thin air. I believe that yogis can physically appear at two placec simulaneosly.I believe that a spiritually evolved person can see things across a wall or at great distances and in many other similar phenomenon which some who call themselves rationalists think as irrational. I question the basis on which the so called rationlists call themselves rationalist.What is the definition of rationalism? I am not too sure but I think it means a belief in only that which can be perceived by the physical senses or deduced by logic and total disregard for phenomenon such as intution, telepathy, astrology etc.This only indicates the limitations of their mind.