Pain is a complex matter because it has numerous manifestations. It can turn up as physical discomfort, psychological and emotional angst, and it can even present in such a way that we don't understand its source. But whatever its form, if we meet it with kindness, patience, and acceptance, it will share its messages with us.
Pain is only ever trying to illuminate the path. We just have to pay attention and listen. Listen to this meditation regularly, and your emotional pain will dissipate.