Here is something from my book on Chiron conjunct each node:

CHIRON CONJUNCT NORTH NODE
Like Donna Van Toen, I feel that the North Node is a point of growth, a point of untapped potential . . . To get at this potential you have to work darned hard. With Chiron here . . . the individual must work even harder, initially. [I’ll explain, later.] At the South Node, on the other hand, are those talents and abilities that are so much a part of you, that you do not need to develop them further. If you use them for yourself, you get into a rut, and end up feeling that you are going nowhere. If you use them for other people, it is like taking money from an unlimited trust fund---you always have enough more to give.
Now any person has the tendency to rely upon the South Node, rather than to strive in the direction of the North. But the person with Chiron on the North Node has a double difficulty: not only the normal human nature to follow the South---but also, it takes a conscious effort to search for the pathway represented by Chiron---to seek the teacher, the guru, the light. The average person born with Chiron conjunct North Node tends to talk a lot about how s/he wants to achieve the great things represented by the natal house occupied by Chiron---but constantly returns to doing things as s/he has always done them at the South Node. S/he may often seem to be on the verge of taking the big step forward, only to revert to the prior line of least resistance. However, should that person actually take that Step---and many do---there develops a particular talent bordering on genius. S/he becomes very conscious of the needs of others and can become a great teacher in his/her own right. And s/he follows a truly unique path.

CHIRON CONJUNCT SOUTH NODE
As with the North Node conjunction, those who have Chiron conjunct South Node have difficult lessons to learn. Those who do not learn it tend to fall back upon their past. Problems they have today are ascribed to a strange or terrible childhood, and there is a reluctance to try working them out. When they are under stress, they tend to fall back on this excuse, or begin to act in an erratic manner, allowing Chiron’s Maverick nature to come out in its most negative expression. The lesson seems to be that they should move on from the past---not let it rule them. They learned a lot from it---but now, it is time to go forward. Those who do learn begin to share their unique insights with others. They have integrated Chiron and it is so much a part of their nature that they can draw upon it whenever another is in need of being helped. They aim their sights at the North Node and seem to attract people who can be helped by their Chiron.