Are you truly awake? Do you know what is around you? In all things, we are ruled by our perceptions. We take in mass quantities of data and then process it until we think we understand. Often, we don't. We just think that we do. Your brain is an amazing thing, capable of taking a few facts and producing an answer. The answer may not be correct. Consider five people witness an accident and now have come up with different colours for the cars when asked to remember the accident. How is that possible? It is because that is what they have remembered, that is the information they have stored.
Life itself is filled by this level of deception. It is possible to have a better understanding of reality by simply paying more attention and gathering more detail. What that means is looking at an event from as many possible ways as you can. Use different ways to store the data. Say the colour and number of vehicles out loud. Write them down. Talk to the person next to you. Yes, this is more work than most people want to do, however, you may find that you have a better clarity, and your judgments are sounder.