The nodes of the Moon are extremely explicit in describing the evolutionary purposes of the soul in the birth chart. They very graphically describe the core necessities of growth and balance on a soul level, through their house and sign placements.
When planets aspect the Nodes, especially through conjunctions and squares, these planets become of paramount importance in the unfolding of the destiny of the individual. They become highly critical to understanding the type of the soul, past lives experiences, and the nature of the current life.