Acceptance is easy to do when things are going well in your life and you are not faced with adversity or challenge.  But acceptance is hard when the struggles of life seemingly continue to mount and are thrown at you.  But this is when the practice of acceptance is the most important.  When faced with the challenges of life, one must reflect that these things have no effect or impact on you unless you allow them to do so.  It is the significance that we imbue upon these events through our ego that makes them so.  And if this is the case, we can also accept that these same events have no influence or consequence on our mental well-being without our consent.  Acceptance is simply the observation of an event without attaching any more or less significance, impact or consequence to it than what actually exists.  It is the mark of the rare and the pursuit of all.

Life is a series of natural and spontaneous changes. Don't resist them; that only creates sorrow. Let reality be reality. Let things flow naturally forward in whatever way they like. Lao Tzu

For after all, the best thing one can do when it is raining is let it rain.  Henry Wadsworth Longfellow

Acceptance doesn’t mean resignation; it means understanding that something is what it is and that there’s got to be a way through it. Michael J. Fox

Accept – then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it. Eckhart Tolle