I just read Chandra Alexander's post on whether a person is sad or depressed. After surviving for several years in the numbed state that antidepressants put me into, her motto "to heal is to feel" makes a lot of sense to me. It is natural to feel sad sometimes, and accepting sadness as a normal, healthy emotion is important.
I'm not sure that I agree with Chandra that depression results from not dealing with sadness. Maybe it is the phasing, but she makes it sound as if depression is a choice or personal failure. I've been pretty much as low as someone can go. I don't know that I would be alive today without medication. When depression hits, it can be so debilitating that dealing with one's malaise on one's own isn't a viable option.
That being said, I think Chandra is correct that there is a lot of power in dealing with one's emotions and accepting that sadness is a normal part of life. As someone who has been on antidepressants long term, I am embracing the ability to feel again. Even "unpleasant" emotions such as sadness and anger are amazing to feel. I can't believe how alive I feel as emotion over emotion washes over me.
Accepting one's emotions and allowing oneself to feel them fully, yet not allowing them to spiral out of control is a fine line to walk. Sadness is often an appropriate emotion. Allowing oneself to accept sad feelings as a normal part of life is important for maintaining emotional balance.