If someone asks me if their new clothes are beautiful, and I answer them saying "No, I don't like the...." or "Yes I like the....", my answer would be "based on my bias", meaning that I am only answering the question from where I see it. But in fact, I am biased and I might be wrong. This is only a little example of being biased, and you have to realise that you might just be wrong according to your point of view. In your case, Westerners are biased because Western culture believes more in the Science of matter rather than something being its nature, which might or might not be true. For example, in economics, it is assumed that if the price for a widget is more expensive, then fewer people will be likely to buy it and the cause is that fewer people have enough money to buy. But practically some people are more likely to buy something because they are more expensive and they are not necessarily that rich, or sometimes they are just not sensible, or maybe it is just too hard to give an explanation of the psychology! You see, it is difficult sometimes to say that that something is the cause of the other just because there seems to be a correlation between the two and we might have the biases of our own cultural values.