To me the reality of Emptiness cannot be seen by one unless one has achieved the level of the first ground boddhisattvahood on the path of seeing. The reason it is called the path of seeing is that it cannot be mental understood but only can be seen by beings on that path and beyond.
However, from the temporal point of view we can understand emptiness and apply it benefit ourselves and others. Below are a few points:
1) Emptiness can be applied to mean that things are in constant flux and are changing. We can even say things are changing every moment. How we can benefit from this is that, since that is the case, then what we perceive as "good" can change for the better or worse and what we perceive as "bad" also has the same nature. So if we are attached to something "good", we must understand that it can also turn into something bad and we should not expect this "good" to stay the same. Sometimes, it is also our mind and opinion towards this something "good" that changes. So we should not be attached. In the same way, something that is "bad" can also change into something good, so we can be steadfast and be positive. Similarly, we should not be attached or adversed to it.
2) When will view something, the view happens from our point of our angle physically and mentally. Know that others view it differently. If we check with others and even though they agree with your view, thrust that even between this "common" view, there are subtle differences. We are all part of Emptiness including our feelings and perceptions and hence things will change. What is a subtle difference today can be a huge difference overtime. Respect others because of this, even your enemy. Because of this know that even your enemies has people who love them. Renounce in that way.
3) Know that things and events arises because of cause and conditions. It is the law of cause and effect. From our point of view emptiness is practically viewed as potentiality of things arising base on cause and conditions. Hence we need to mind our actions for we are bound to reap what we sowed.