Dan Siegel, author of ‘Mindsight’, here offers a scientifically precise take on integration, and on the kind of view of the mind that is needed to make sense of integration. This is well worth a view if you are interested in understanding the working of integration more clearly.  We’re not just talking vague psychobabble here, but something that can be understood quite precisely both in terms of brains and in terms of experience. There is also an interesting transcribed interview with him here.