Get over it. Let it go. Move on. A bunch of phrases that have always sounded meaningless to me. If you have experienced any kind of loss - and everyone has - you will know the way you feel about it is out of your control.
Now there is science to back up the theory that getting over it is not an option. Because it turns out you can inherit the effects of trauma your parents suffered. A study of 32 Holocaust survivors and their children, carried out at New York's Mt Sinai Hospital, showed that the latter had inherited genetic disposition to stress disorders that could only be attributed to their parents' experience.
All too often we hear, especially if we're a Maori deprived of our land, a survivor of domestic abuse, or Teina Pora, that we should get over what happened to us and get on with our lives: Why not set a deadline for Treaty settlements? Would the Pike River families please shut up? As if there were a time limit on feelings or injustice.
And if you're a Jew you're no doubt used to being told the Holocaust was 70 years ago and those Israelis are just crazy and bloody minded for clinging to its memory to justify their policies. The same is equally true, of course, if you're Palestinian.
Anyone who has suffered trauma knows that feelings of grief and loss never go away. They may recur less frequently but they are still there, just under the surface, ready to be reawakened by the right trigger.