Living in Forgiveness

The path out of bitterness is by practicing the habit of forgiveness. When asked, “How many times should I forgive my friend?” Jesus replies, “Seventy times seventy,” which is his way of saying that we should freely and fully offer forgiveness endlessly. But how do we do that? That sounds like a nice teaching, but when we have been grievously hurt, it sounds impossible and even unjust. How can we forgive the people while also acknowledging the pain they have caused us?