Stoicism's opposite and the mind as a measuring device

Very funny title, isn't it? First of all, Stoicism is: "the endurance of pain or hardship without the display of feelings and without complaint.", according to Google. Now, I had to wonder, is there an opposite: what about being sensitive to ambient situations and/or the like, ones that we might never think about or realize? Emotions can destroy one's self, and therefore being emotional is extremely risky, dangerous, and can literally be deadly. But if we could somehow be resilient and dynamic enough at the same time, to avoid the risks on time, could we then be sensitive to get more advantage from life; for example, if a situation is relatively dull but still can cause slight happiness, we can still get ourselves to really be sensitive and therefore truly understand the benefit of the given situation. We could then, effectively become instruments; specifically, our minds could become very sensitive instruments in the sense that the mind could study life more in depth. I likened it (the potential of the human mind) in my mind, to an extremely accurate measuring instrument; for example, a quantum thermometer which could detect temperatures at extremely small differences, such as being able to measure and differentiate a billionth of a degree from two billionths of a degree. Or, a quantum (atomic clock) being able to differentiate between millionths, perhaps even billionths, of a second; interestingly, I also thought about a device that could maybe work like this but in terms of detecting changes in ambient lighting to detect stuff, but I'm not certain as to what the application of such a device would be. The point is basically that there are many analogies that can be used, but the human mind might potentially be a very accurate measuring device itself to detect changes, especially environmental changes, and, as I've written before, magnetic fields.