We see what we believe and believe what we see.
From this position, reality is defined by what we observe through the senses, for many feel that the only way to validate a truth is to either see, hear, touch, taste or smell elements that support the idea. Because of the logical standards taught in Western society, people are very trusting of the information gathered through their senses; just by living in this physical world, we grow dependent upon our perception, relying on it to feed us the truth and designate our reality.
It is necessary to take into consideration the context of where and when these views have developed. New technology has an impact on all aspects of our lives in the modern world: social, community, science, work, education, transportation and much more. Some would argue that the scientific advances that surround us have made people very dependent on physical materials, drawing us away from our minds' true states. Logical thought and scientific procedures have emerged as the force of the intellect, shaping the way we perceive our surroundings by planting seeds of what to expect from the objects around us (i.e. that they stay within our spacial realm of three dimensions, are light and dark in the correct areas, and other such assumptions). In these ways, the definition of reality from a modern, Western angle conforms to our intellectual expectations and base of knowledge, limited by the boundaries of our abilities of sensory perception.
Kensur Yeshey Tupden, a Tibetan Buddhist scholar, explains that "true existence" (matter we see) is accepted in conventional views, but only because we have been taught to observe and accept them in a certain way: "Thus, we perceive true existence because of predispositions for conceiving things this way. That which apprehends true existence due to these predispositions obscures and is obscured from seeing reality."