6578. 'And spoke to their heart' means trust. This is clear from the meaning of 'speaking to the heart' as imparting trust, that is to say, that nothing evil would happen to them; for 'speaking' means an influx, 1951, 5481, 5797, and 'the heart' means the will, 2930, 3888, so that 'speaking to the heart' means an influx into the will and trust engendered by it. From this it is also evident that the marriage of truth which is of the understanding and good which is of the will exists in every detail of the Word; for 'consoling' has reference to the understanding, and 'speaking to the heart' to the will. For the same reason 'he consoled them' means hope, since it is an attribute of the understanding received through truth, while 'he spoke to their heart' means trust, since it is an attribute of the will received through good. Genuine trust cannot be imparted to any but those with whom the good of charity exists, and genuine hope to none but those with whom the good of faith is present.

3888. Those two kingdoms manifest themselves in man through the two kingdoms which exist within him - the kingdom of the will and the kingdom of the understanding which constitute man's mind, indeed man himself. It is the will to which the beating of the heart corresponds, and the understanding to which the breathing of the lungs corresponds. Those two kingdoms also manifest themselves in man's body, where again there are two kingdoms - that of the heart and that of the lungs. Anyone who knows this arcanum is also able to know about the influx of the will into the understanding and of the understanding into the will and consequently to know about the influx of the good of love into the truth of faith, and vice versa, and so about the regeneration of man. But people who are restricted solely to bodily ideas, that is, people who have evil as the object of their will and falsity the object of their understanding cannot grasp these matters, for they cannot think about spiritual and celestial things except with the senses and the body. Consequently they cannot think of those things except from a thick darkness concerning the things that constitute heavenly light, which is the truth of faith, and from a coldness concerning the things that constitute heavenly flame, which is the good of love. Those two - the thick darkness and the coldness - so blot out celestial and spiritual things that they do not seem to those people to be anything.