Can emotional pain lead to depression?

Emotional pain can be defined as a pain inside us which arises due to negative thoughts. Pain is basically a feeling which occurs due to lack of love and care in life by someone whom you really adore. Some people feel emotional pain from a loved one's rejection and others might feel due to some emotional stress at work or at home due to unhealthy relationships.

There’s a quote on pain: "Pain is a complex perception that takes place only at higher levels of the central nervous system."

I believe that being in pain for longer duration can lead a person to depression. Depressive symptoms vary greatly from person to person as well as do the causes. Pain and Depression are closely related to each other as pain is a stress associated to depression. Depression may increase your response to pain, or at least increase the suffering associated with pain.

Peace is very important here again so that we can be live without pain and depression.