I was a way of letting go. Once she threw it in the ocean, she was able to pass away and be with her true love. i wont explain but i would just say (heart of the ocean->rose), (ocean->jack dawson), (brock lovett->caledon hockley). thats why rose didnt give that diamond to brock.
Definition of post-traumatic stress disorder for English Language Learners medical: a mental condition that can affect a person who has had a very shocking or difficult experience (such as fighting in a war) and that is usually characterized by depression, anxiety, etc.
But the fact is that since the 1994 definition, research has defined PTSD in such a way that trauma is necessary but not always sufficient to produce PTSD - so both these points of view are right. The current definition has it both ways by understanding PTSD as the outcome of an interaction between trauma intensity and personal vulnerability. An extreme event may be sufficient to produce PTSD in all who experience it so that personal vulnerability is not a factor.