It is a broad observation over decades that plans and schemes for 'making life more meaningful', or happy - or more spiritual - will never work. The plans and schemes will never work for long, and never fully.
All plans and schemes come up against the basic nature of the this world - which is mortality and entropy; which entails that all shall tend toward destruction. So all plans and schemes will - for one reason or another; indeed for many reasons - fail of thier original impulse and intent.
This may be disguised by the pretense that 'what we offer is what you want' - when The System controls a situation, and attempts to draw individuals into that System such that their desires are inculcated and gratified.
But this never works either; because The System represents a massive simplification and distortion of human nature. Human nature can be (to an extent) simplified and distorted to match The System (or a sub-system - maybe a church; or the plans and schemes of a spiritual method)...
But the real Self, the eternal divine Self, will never be satisfied with this.... Our real Self will indeed cry out in existential pain (i.e. despair) against the attempted spiritual fraud.
This is why it seems of vital importance to understand that This World is ultimately about spiritual learning - with reference to a future resurrected and eternal life. This life is Not about self-improvement; because in an ultimate and overall sense we as Mortal Men cannot be improved; things-in-general cannot be improved - certainly not in any comprehensive and coherent, stable fashion.
Improvement is not what this World is For.
This strikes me as a vital thing to remind ourselves about; because so much of the world, so much of culture and religion; assumes, supposes and asserts that (in an ultimate sense) we are supposed to make ourselves better and make the world a better place; and that this betterment is both incremental and overall.
The assumption is that we each ought to be getting better and better - and better as-a-whole not just in specifics).
And The World too: the world is overall and as-a-whole supposed to be improving, and we are each supposed to assist in this project to 'make the world a better place'.
Yet the experience of any Man and of Mankind alike has shown that none of this is possible. In the end, whatever positives (and there are Many); sooner or later; there will be corruption, disease, decay and death.
Therefore; either we recognize that we and this world are designed and intended to be a domain for experiences from-which we personally ought to learn - and the meaning of this learning being expressed fully, only after death and in Heaven -- or else we will always and forever be disappointed, always on a knife-edge and tending to fall into despair.