“The holiest of all holidays are those kept by ourselves in silence and apart; the secret anniversaries of the heart.” ~ Henry Wadsworth Longfellow The winter holidays are in full swing. But if you’re grieving a loss, the festivities only amplify your pain and shine a light on the empty chair or chairs around your table. My column today in The Sunday Oakland Press offers tips on how to get through the holiday when you don’t feel like celebrating. I invited several therapists and grief counselors to share advice for everyone who’s mourning a loss this season. The column — “Empty Chairs at Christmas” — runs in the Homefront section…