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.

2935. 'Let him give me the cave of Machpelah [which is his]' means the obscurity of faith [that was theirs]. This is clear from the meaning of 'a cave' as obscurity, dealt with in 2463, and from the meaning of 'Machpelah' as faith which is enveloped in obscurity. The reason 'a cave' means obscurity is that it is a place filled with darkness. When reference is made to a mountain cave - as in Genesis 19:30, where it is said that Lot lived in a mountain cave - obscurity as regards good is meant, but when reference is made to the cave in the field of Machpelah obscurity as regards truth is meant. Here, because the expression 'the cave of Machpelah' is used - Machpelah being the field at the end of which the cave was situated - an obscurity as regards truth, or what amounts to the same, as regards faith is meant. From this it is also evident that Machpelah is faith which is enveloped in obscurity.

[2] Those who are being regenerated and becoming spiritual are very much in obscurity as regards truth. With them good from the Lord is indeed flowing in, but truth less so. Consequently a parallelism and correspondence exists with man between the Lord and good, but not between Him and truth, see 1832. The chief reason for this is that men do not know what good is, and if they did know they would still not believe it at heart. And as long as their good is enveloped in obscurity, so too is their truth, for it is from good that all truth springs. Or to be more explicit, the idea that the Lord is Good itself, and that everything which in itself is a manifestation of love to Him and of charity towards the neighbour is good, and that everything which declares and confirms this is truth, they do not know except in an extremely obscure way. Indeed they even entertain doubts, and allow reasonings to enter in against those considerations. And as long as their state is such, the light of truth from the Lord cannot flow in. Indeed they think of the Lord as they do of another human being and not of Him as God; and they model their idea of love to Him on some worldly kind of love. What genuine affection that stems from charity towards the neighbour is they scarcely know at all, or even what charity is and what the neighbour is. Yet these are essentials. From this one may recognize the great obscurity in which spiritual people are and which is all the greater before regeneration has taken place, which state is the subject here.