What Putin cant forgive-what cant you forgive?

When is about forgiveness, we are told, as we are christians to forgive unconditionally!But..sadly, we are so far of this, so many times! We struggle to forgive and this is keeping us in chains, chains that go around our heart and soul: bitterness, angriness, deep misery..
This video here with Putin, even though short, is one of the most powerful videos i have seen!
See Putin answering this question: CAN YOU FORGIVE? AND IF YES CAN YOU FORGIVE IT ALL? AND IF YOU CANT FORGIVE IT ALL, THEN WHAT CANT YOU FORGIVE??