The natural state of reality is systemless. It is disorder not order. It is less rather than more. It is simple rather than complex. It is low in value and information. The natural state of reality is devoid of complex and connected systems.
Persistence is existence into the future. Given the natural systemless state of reality the only systems that can persist are those that are able to defeat the collapse into the natural state.
Imagine a system at a point in time. If we accept the Law of Impermanence then it follows that this system must change at some point in it's future. This change can either increase the system's arcitechtonics (make the system more organised, structured, connected) or it can decrease it. The natural direction is for systems to decrease arcttechtonically.
All of everything is tending towards nothing and it is only the persistence of systems, you, me the galaxy, that holds this of.
The very root fundamental purpose of life, traceable through a linear and continuous, though vague, path down through the scaled of abstraction; Beneficial states persist.
The foundational fact of systems is that beneficial states persists. The beak of a finch, a job promotion, the distribution of matter in the universe, beneficial states persist.
The fittest survive. The beneficial persist. In many ways these are trivial and tautological, but in in understanding this tautology with the systems framework you can see why things are as they are. They are as they are because of enough impermanence (time and change and possibility) to allow increasingly more complex systems to emerge from more simple systems.
That is why we are here. The purpose of being here is to continue the persistence of systems. And the method of doing this is by increasing beneficial states within systems.
There is no fundamental meaning to life in Cornwall, in the way there is no fundamental meaning to a joke, but there is a fundamental purpose to life in Cornwall.