I could write for days about opening one's heart to the world and allowing it to be touched. I listen to teachings about it, read about it, practice it...
Having said that, I'm going to make this simple.
So much suffering could be alleviated by letting our hearts be touched. So much suffering is caused by the heart—through time and conditioning and self-protection—closing off and becoming "hard." We seek comfort and avoid pain. What we don't seem to understand (so many of us) is that in order to feel joy and peace and love, we have to also feel sadness and turmoil and fear. In order to feel things deeply, we have to practice opening the heart and allowing it to be touched by both the comfortable feelings and also the painful ones.
We can't have light without darkness.
May we all be free from suffering and the root of suffering.
May we all enjoy happiness and the root of happiness.
May we be awake with an open heart and an open mind.
May our hearts be touched by both joy and pain so that we can truly be compassionate and loving to others and ourselves.