You are 100% right, what is about to happen will be a major TEST for humanity which only a few will pass, which is a pity, because the key to pass the test is as simple as to NOT FEAR. So simple and so difficult at the same time.
some of us have been practising "not fearing" in our daily lifes with all the small or big tests that life throw at us and sometimes we still allow fear to creep in ...
As you say not matter how many guns/food you have , or how good your bunker is, that won´t save you from what is about to happen but only those whose heart/soul is ready will pass the test.
For some reason which I don´t really know I have been given understanding about exactly what is about to happen and for how long it will go on and although knowing it will make me somehow more prepared in my heart , I know that it still will be very hard as things will go from bad to worse and when we think things cannot get any worse they will but as you say we have to keep on remembering not to fear and remebering we are unique and much bigger than we think. We are one with god (or however you want to call it)and that can never be destroyed.
It will be over two years of pure hell but at the end of it something soooo beautiful is awaiting that the pain will be worth it ...
See you at the other side.