I recently posted a discussion titled 'The Purpose of Life. But why do we choose to continue it? Where i attempted to pose the purpose of life through my eyes. I realized that it wasn't articulated very well and that some clarification was needed. I decided to completely rewrite this idea and post it again to see get some feed back on just the idea itself and to see if anyone can pull wholes in it with their logic.

*IMPORTANT* - before reading this its imperative to understand the difference between two definitions of life. (1) being the entirety of life encompassing all living organisms on earth and (2) being the perspective through one's life as a singular organism within the greater system of life. I feel not making this distinction in my last post caused a lot of confusion.

Perpetual Theory of Life

To identify the purpose of one’s life we first need to look at the purpose of the entirety of life as a whole. The entirety of life exists as a continuing loop of birth, survival and death. Where survival brings birth and death brings survival.
For instance, say a fish spontaneously dies. A young seal comes across this fish and eats it so it has enough energy to continue surviving. Somehow this seal is able to find enough of these dead fish to enable it to survive for an extended period of time. Whilst surviving this seal is impregnated by another seal. After more time surviving and consuming many other dead fish, this seal was able generate enough energy to reproduce another seal just like it within itself and bring it into the world. After giving birth to its seal pup it goes on to survive for a bit longer then dies as an old seal, where it sinks to the bottom of the ocean and is then eaten by fish. To which this cycle continues.
This is generally referred to as the circle of life and takes place amongst all living organisms in some shape or form. If the function of life is to circulate and continue its existence. Then its purpose can be defined as its function. Meaning the purpose of life as its entirety is to perpetuate its existence. When reflecting on one’s life we can see that all our actions and behaviours are to essentially serve this greater purpose.
Some people commonly suggest that the purpose of life is to experience happiness. Most think it is at the root of what drives a lot of our choices and behaviours. Ideas such as wealth, love, health and connection with others are just some examples through which humankind define means of obtaining happiness. Though happiness could be seen as just a mechanism installed into our minds as a way to encourage behaviours which assist in the perpetuation of life and its entirety.
Recent research showing that the intuitive positive relationship between wealth and happiness breaks down after certain basic needs are taken care of, and the breaking point beyond which money makes little difference to one's happiness is surprisingly low. Evident (for example) in the fact that people who suffer debilitating injuries or win the lotto both go back to their pre-existing level of self-reported satisfaction with life after only a few months. From this, happiness could be a sensation that can be derived right down to at least just one of our four basic needs of life being met.
In order to survive, we need the bare minimum of oxygen, water, food and shelter. When our body is lacking one or more of these four things, our mind creates uncomfortable feelings such as suffocation, thirst, hunger and being hot or cold respectively. This applies alternatively as well. When these needs are met, for example when eating energy dense food, our body rewards us with satisfying sensations of taste and fullness which intern make us happy. It does this as a way to ensure the body maintains a healthy continuation of its existence for long enough to reproduce and raise young to a stage where they can continue the cycle. This is where concepts of love and connection with others come into it. Love is generally a term we associate with happiness. The reason we form this idea of love with another human is to form a strong enough connection to mate together and then once a child is created stay together for long enough as to raise that child to where it can complete this same purpose. Humans have found forming these romantic relationships and complex social connections within a tribe or now a society of other humans, is the most effective means of successfully completing this cycle.
It’s important to keep in mind that with all systems there are inefficiencies where for varying reasons this cycle isn’t able to complete itself. For example, individuals who cannot have children as they are infertile. Though despite this, every living organism at least still become a fuel source for the next organism in the cycle.
When you focus right down to it, every single behaviour and action from eating to love and even death can be sourced right down to a mechanism just to sustain the continuation of life.

Look forward to hearing your insights.