A core purpose is to learn from life, not try to make a better world

A core purpose is that we should learn from life; that is, should spiritually learn from our actually-existing life. 

Learning is validly "core" because it can always be accomplished, by every person, in all possible circumstances.

Conversely; it is not our purpose to strive for "a better world". 

People who strive for a better world have - at root - only one suggestion, a single way of working; which is to adopt a set of rules, a "system", and to incentivize compliance. 

This Does Not Work, and trying does harm; but the opposite - ignoring rules, and lax enforcement, does not work either... 

Neither option is valid: Legalism is bad, anti-legalism is bad. 

The proper inference is that making the world better is not a proper activity, in essence it is not what we ought to be doing - plus, of course, hardly anybody is in a position to do it.

What we can and should be doing is to learn from our situation; and one thing we should learn is the futility of trying to make the world better. 

Of course, that is a negative message - but when it is learned it clears the ground for something better - for understanding what we can do and should do about "life".

We can realize, recognize, learn: 

1. What is needed, and 

2. That we cannot make it happen. 

1. What is needed is that the world be governed by love (not by rules, nor by rule-breaking or chaos).

2. We cannot, by any means, make a world governed by love.

Therefore; if we personally want a world governed by love despite that this is impossible in this world; we should seek, evaluate, and (if true) follow - one could claims that he can make a world governed by love, and can give us access to that world.  

Nothing else will suffice - if it is agreed that a world governed by love is the only answer to our deepest yearning, and that such a world cannot be this world. 

The world as it actually is, and is actually experienced, by everybody; can teach us exactly this - and teach it very clearly and forcibly... 

If we are open to spiritual learning, and recognize that as a core task of this our mortal life.