I am very concerned about my 75-year-old mother. It has been two years since my father passed away. She told me the other day that she sees him at night. I told her she has to be dreaming, and it may seem real, but it is not. Also, sometimes she may look at an object and sees something else until she focuses. Otherwise, she is fine, still doing her daily routine nothing has changed, even balances cheque books and drives. But I am just concerned about this. Could she still be grieving?