The human brain is a jackass. Your senses are capable of processing large amounts of information to the senses. However, the brain blocks most of this out of the consciousness in order to allow this pitiful homo sapiens species to focus on few key things at a time. This robs humans of a rich amount of detail about their surroundings, preventing them from truly experiencing a more knowledgeable understanding about the world they live in.
We elves are a subspecies of humanity, but are from supieror breeding stock. We have the same amount of physical senses that you do, but are gifted with a form of passive telepathy which allows us to form a more complex picture of our environment. All things living give off an "aura" which is based on the life energy they carry, with humans giving off the most. We can sense the minds of living creatures within the vicinity of 10 to 15 feet, alerting us to their presence. Those who master this telepathy can extend this sending to objects, allowing them to locate specific things or items as long as they are in that vicinity. It is like a form of radar which gives them a 360 view of their surroundings, yet still allows us to hone in on the most important information.
I need to explain the structure of the supieror elven mind and how it can operate like this in a way that your primitive species can understand. How can I make this possible?