Summary:
The philosophical message of REBT is that reality never has to be how you want it to be. People resist this message and give various reasons for perfuming the rigid attitudes that lead to their self-defeating emotional disturbance. REBT shows them that the evidence is clear that reality never has to be what we want it to be. Understanding this, we can avoid compounding our problems and undermining our ability to influence reality with our unhealthy negative emotions of anger, despair, shame, etc. REBT is not teaching resignation. It aims to liberate you from the self-harming emotions that block you from addressing reality with creative and persistent responses that will assist you in changing what you can and living well with the unchangeable.
Keep working to adopt and implement this simple idea as you face the neverending stream of adversities that will come your way until you die.