The advent of each day brings us joys and challenges, each of which have the ability to alter our life-state in some way. Joys tend to raise our life-state, challenges may lower it if we let them, and therein lies the conundrum. We need to be vigilant, to observe our life-state from moment to moment, but in doing so, we affect that life-state.
Just as in quantum physics, the mere act of observation affects the phenomenon being observed, self observation of our life-state can, and most likely will affect it too. Imagine a situation where you become angry because something has not gone the way you would like. Initially you may be reacting instinctively, in an animalistic fashion. But as soon as you realise that you are reacting in such a manner, in other words, you observe your life-state, there is a large chance that you will change to that of a more calm and reflective mood, even into a state of tranquility.
So we have this little test for ourselves. We must be, as far as possible, aware of our life-state. Ideally we want to be in one of the higher states, not grubbing around in the worlds of Hell, Hunger, Animality or Anger, but in Learning, Realisation, Bodhisattva or even Buddhahood. The act of testing can help us raise our life-state through awareness, which is a good thing. But be warned, when the results come back, and you find you are in one of the lower worlds, that can be a sobering moment, when you realise that you are not as far along the path to enlightenment as you would like to be.