“Lack of self-worth is the fundamental source of all emotional pain. A feeling of insecurity, unworthiness and lack of value is the core experience of powerlessness.”
Gary Zukav & Linda Francis
I think on a more basic level emotional pain comes from the perception of lack and loss, or a fear of these things. Whether it’s a faulty perception of ourselves such as “I’m never good enough,” “I’m a failure,” etc, or from loss where were afraid we’ll never feel whole or be happy again.
These perceptions that cause our suffering aren’t permanent. We don’t stay stuck in them forever, but it can sometimes feel as though we will.
I believe these perceptions cause so much pain because they aren’t in alignment with our true nature on a spiritual level. We certainly feel powerless when we don’t recognize or accept or own value. It will cause recurring problems in relationships, mental health, and limit or careers and social lives as long as we keep believing and acting as though we don’t matter.