In the 61st chapter of Isaiah, there is a beautiful prophecy of the Lord's advent, and of the impact that it would have. It begins this way:

“The Spirit of the Lord God is upon Me, Because the Lord has anointed Me To preach good tidings to the poor; He has sent Me to heal the brokenhearted.... (Isaiah 61:1)

In the New Testament, in Luke 4:14-22, we see confirmation of this prophecy, in this story:

"14 And Jesus returned in the power of the Spirit into Galilee: and there went out a fame of him through all the region round about.

15 And he taught in their synagogues, being glorified of all.

16 And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read.

17 And there was delivered unto him the book of the prophet Esaias. And when he had opened the book, he found the place where it was written,

18 The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised,

19 To preach the acceptable year of the Lord.

20 And he closed the book, and he gave it again to the minister, and sat down. And the eyes of all them that were in the synagogue were fastened on him.

21 And he began to say unto them, This day is this scripture fulfilled in your ears.

22 And all bare him witness, and wondered at the gracious words which proceeded out of his mouth. And they said, Is not this Joseph's son?"

In this passage, who are the poor, and the brokenhearted? They are people who do not yet know enough real truth, or who therefore are not yet able to receive real good. They are people who "are ignorant of truth and who desire it." (Inner Meaning of the Prophets and Psalms 61).

Here's another source:

"These things (above) are said of the Lord. 'The poor' to whom Jehovah has anointed Him to preach good tidings, refers to those who are in few truths, and yet desire truths that their soul may be sustained by them. The 'broken in heart' stand for those who as a consequence are in grief." (Apocalypse Explained 811[17]).

Every person has two spiritual faculties that work together -- a will (the things we love), and an understanding (the things we know and believe in). We're born with both, and they gradually develop. Our original will is mostly selfish, and it needs to be gradually expunged, and replaced by a new unselfish will that the Lord wants to implant and develop in us. On our personal spiritual journeys, that's the the big thing that needs to happen.

Our understanding, at some points in that process, needs to step out ahead of the will, and learn true ideas, and construct them into a framework. There has to be a part of the will that directs the understanding to make this effort, and wants to use the framework. There's another part of the will that says -- no, not interested, don't bother, maybe later. But it's the unselfish part - the good part - that feels this driving need for truth. It's people who are in this state that are poor (needing to learn truth), and brokenhearted (in grief, and therefore wanting to learn truth, so that they can be good, and receive the Lord's love). See Arcana Coelestia 6854[3] and its related cross-references for an interesting discussion of this process.

3833. 'And so it was in the evening' means when the state was still obscure. This is clear from the meaning of 'the evening' as an obscure state, dealt with in 3056. Furthermore feasts held in the evening, that is, suppers, meant nothing else among the ancients who had appropriate religious observances than the introductory state which comes before an actual joining together, which is obscure compared with that state when the joining together has taken place. Indeed when a person is being introduced into truth and from this into good, everything he learns at that time is obscure. But once good is joined to him and he regards truth from the standpoint of good, everything he learns becomes clear to him, gradually and increasingly so. For he is now no longer in doubt about whether something exists or whether it is true but knows that it exists and is true.

[2] Once a person has reached this state he starts to know countless things, for he now proceeds from the good and truth which he believes and perceives. He proceeds so to speak from the central point out to the peripheral regions; and in the measure that he proceeds from such good and truth, he sees in the same measure the things round about, and gradually more and more widely since he is constantly pushing out and extending the boundaries. Thereafter he also begins from each subject situated in the space within those boundaries, and from those subjects as new centres he pushes out new peripheral regions; and so on in the spaces within these. Consequently the light of truth radiating from good increases enormously and becomes one expanse of light, for he is now bathed in the light of heaven which shines from the Lord. But to people who are prone to doubt and who question whether something exists and is true, those countless, indeed limitless things are not visible at all. To them every single one is totally obscure. Those things are scarcely seen by them as a single whole which definitely exists, only as a single whole whose very existence they are uncertain of. Such is the condition into which human wisdom and intelligence has fallen at the present day. Being able to reason cleverly whether something exists is now the mark of a wise man, and being able to reason that it does not exist is the mark of one wiser still.

[3] Take for example the question whether in the Word an internal sense exists which such people call the mystical sense. Until they believe in the existence of it they cannot know a single one of the countless things existing within that sense, so many that they fill the whole of heaven in unending variety. Take as another example one who reasons about whether Divine Providence is merely universal and does not extend to specific details. That person cannot know the countless arcana which have to do with Providence, as many in number as the occurrences in everyone's life from start to finish and in the world from its creation to its end, and even for ever. Take as yet another example one who reasons whether good can exist in anyone, seeing that the will of man is fundamentally depraved. He cannot possibly be aware of all the arcana that have to do with regeneration, nor even that a new will is implanted by the Lord and the arcana concerning this. And the same is so with everything else. From this one may recognize what obscurity surrounds such people and that they do not even see, let alone reach, the outskirts of wisdom.