At a young age, we learn that we have five senses: sight, hearing, touch, taste, and smell. What if we had more?
I understand that references to “extra senses” sounds like new-age clap-trap, something that goes along with “healing crystals” or alien abductions. However, no unicorns were harmed in the writing of this post, and below are my suggestions for those extra senses.
Balance: It is easy to forget this (until you lose it) but balance is really something apart from the other senses. In the absence of other senses you will still be able to know which way is up. It can be fooled (e.g., pilots in zero visibility) but so can all the other senses.
Proprioception: This is the sense of where your body fits in space. It is what allows you touch your own nose, brush your own hair, and shift gears in a car. If you need to, you can do these things without looking, you do not use your other senses to guide your actions. It is probably far easier to touch your own nose than touch the nose of another person, whom you can see.
Intuition: If you were with me up to this, you might now be fearing for the safety of the unicorn. Intuition is knowing without knowing. It is the ability to take current sensory input and mix it memories of previous experience to make decisions. That understanding happens in the same way that you know up is up, the difference between cold and hot, sweet and bitter, etc. In other words, it more like a sensory input than a developed skill; you become aware of “something” without consciously trying to discern it in the same way you notice bitter before you put a name to it.
Proximity: Perhaps related to proprioception (or even intuition), it is the ability to know when someone (or something) is within your personal space without actually seeing them. It may be that subtle sensory clues (sound, subtle air movements, even smell) tipped you off, or it maybe another sense.
Sense of humor: I am not joking with this post, at least I am not intentionally attempting humor. What do you think, are my suggestions plausible, or should I kill the unicorn and toss the healing crystals?