This understanding of the North Node comes primarily from Evolutionary Astrology as taught by Jeffrey Wolf Green. EA sees the natal chart as a map of the Soul's evolutionary goals for this life, within the context of many lifetimes.
The North Node of the Moon is always opposite the South Node in the chart, and together they form the Nodal Axis. The Nodes, along with Pluto, forms the basis of your evolutionary plan for this lifetime. By studying the Nodes and Pluto, you can understand the intention of your Soul to grow, and to resolve any prior life unfinished business (karma).
Pluto is the "why" behind our evolution—the core Soul intention. The Nodes are the "how"—the specific life modes that will help us actualize our Pluto desires. They are the identity structure the Soul uses to enact its evolutionary program.
While the South Node represents our prior lifetime identities and how we carried out the program last time around, the North Node is usually new territory for us. We may have resistance to it, because it's the polarity of our South Node, which is the comfort zone that we've become very familiar with (and potentially highly skilled at) in prior lifetimes.
It's not necessary to pursue North Node activities on purpose (unless you want to). The evolutionary journey will happen on its own, and sometimes you won't even realize that certain activities were related to your North Node until you reflect on them later. Not all the associations are immediately obvious—your North Node in Leo doesn't necessarily mean you're going to become a rock star or an influencer. It could just be the slow development of confidence and courage in your creative abilities, and a willingness to be seen for them.
The only thing that’s required for growth is to release attachments when it’s time, and be willing to embrace new ways of being.