In my own view, in my own life, there are 2 main goals.
Power and Fun.
Pleasure is fun, but empowering one’s self can be stressful, annoying, and time consuming.
The power-vs-fun example would be something like:
Eat healthy, or eat mc donalds. Fast food is more pleasant than health food, in many cases.
So that is an example of power vs fun. Power = longevity and vital strength, amoung other things.
what if you had power but an unpleasant life?
Or pleasure but no causal power or long lastingness?
ability to do or act; capability of doing or accomplishing something.
political or national strength: the balance of power in Europe.
great or marked ability to do or act; strength; might; force.
the possession of control or command over others; authority; ascendancy:
power over men’s minds.
political ascendancy or control in the government of a country, state, etc.:
They attained power by overthrowing the legal government.
legal ability, capacity, or authority: the power of attorney.
delegated authority; authority granted to a person or persons in a particular office or capacity: the powers of the president. dictionary.com/browse/power?s=t
I think it is most likely you are referring to 1 or 4.
In either of the above case, one could end up with positive or negative consequences depending on the circumstances.
It is the same for ‘fun’ which can be very relative. Genocide could be fun to some people.
Thus to define one’s main goals of life in term of ‘purpose’ or ‘fun’ can end up with negative or dire consequences if the negative extremes prevail.
I believe defining the purpose of life as ‘taking the Middle Way [as in Buddhism] to optimize the well being of the individual and therefrom to humanity’ would be more meaningful with attached utility.
In this case there is no need to refer to power, fun, pleasure, hedonism, materialism, god, etc. as the purpose of one’s life.
Fun implies a truth connection, an ontological linkage below the surface. When that linkage is broken you get insane pathological “fun” which isn’t the same at all as the truth connected fun, and is actually closer to a drug-induced high of intruding upon the pleasure-reward circuits in a way crudely beyond the sphere of ontological, meaningful conscious content – namely you can stimulate your pleasure-reward system from outside by putting drugs into your body, but that can only produce a simulation of true pleasure, not pleasure itself. Or rather, to be precise: it can produce raw pleasure but without any ground of meaning connected intrinsically into your own being (happiness, self-value). Such a being-connection must then be attempted after the fact and from ‘outside’, which amounts to the pure form of false justification (begging the question, or putting the cart before the horse)… In other words, a pathology.
Just because something feels like fun or feels like happiness doesn’t mean it is. If you can’t tell the difference then you’re already insane.