If Center is that mysterious intersection or encounter between ourselves and divine energy, wherever and whenever this occurs, Soul is how we connect with this intersection with the divine, the personal face we put on it, the personal experience we have of it.
Like a glittering diamond or prism of light, Center and Soul are interconnecting metaphors and realities experienced from different vantage points.
Soul is that part of us that is relational, emotional, that connects with and contains experience. Soul digests experience into our psychology and mythology. Soul is how we talk about experience, soul mate around it.
Soul is how we open ourselves to life passing through us, releasing the light from the darkness of our matter, from the darkness of our struggle.
Soul dips us into the primordial formless, takes us down into our earthiness, enables us to rise again with more depth and meaning.