We are limited by our senses in the ways that we can perceive the world. We can see, hear, taste, touch, and smell. We also can feel hot or cold. Yet, there are other things going on in the world that we can not perceive directly. We now know that there are such things as electric currents and magnetic fields. We do not know these things directly but we can use the senses that we do have to monitor them indirectly.
We are limited also by what we are taught from birth. Everyone is usually exposed to different cultures, religions, and/or belief systems. We often see, hear, taste, smell, and feel what we expect to experience based on what we have been told.
All senses perceive a broad spectrum of physical qualities and do to training and experience we may focus on a certain portion of that range. Our brains are very adaptive and areas of the brain which are receptors for certain sensations may be atrophied through disuse or enhanced by use. Thus people from different parts of the world can perceive it differently with more or less sensitivity.
DNA may determine which sense a person or animal favors and/or how well they can use them. It would make sense that chefs are more sensitive to tastes and smells than musicians and musicians are more sensitive to sounds. I lived in a student living facility where one of the students living there constantly complained about a high pitched sound that the rest of us living there couldn’t hear. Also dogs and especially certain breeds are very sensitive to smell and can discriminate between many different kinds of smells that humans can’t differentiate among or even in many cases can’t detect.
What is going on out there in our world that we haven’t learned to detect yet? What are other living organisms able to sense that we are not able to sense? Will we be able to confirm the existence of extrasensory perception in the future?