What Hurts the Most - Piper and Chris

This is about Piper missing Chris, though she doesnt realise she misses him. She wont accept the fact that Chris is actually dead. Everywhere she goes she see's him, most of the time she even has conversations with him. The sisters and everyone else are worried about her. They are not sure if she is losing her mind. So Paige, Victor and Phoebe have a chat with her and explain that he is gone, but she denies it. In the end she still see's him.