If truth is what someone has learned to be valid for his life, the concept becomes a self fulfilling prophecy as soon as he act on what he has learned about it.
Learning lessons from events is not always beneficial. It will serve a rolling wheel of acts, coincidences and consequences, but it will not (necessarily) roll towards a goal.
If someone manage to unlearn certain lessons, the whole rolling process starts to appear nonsensical to him.
When the process of going down a hill seems nonsensical, different things start to happen. For one, he lose his balance. He now rolls down the hill unguided by his instincts for survival. The only way to live for him now is to scramble for footing and then climb uphill. He can still decide to roll down, but he has a choice - life becomes an act instead of a reaction - or it remains contemplative inaction.
Because, how to jump down, if one has a perspective on the hill? Fear prohibits the man who has freed himself from his course to involve himself again. Life now offers too many options, and too many dangers.
I have a theory that not everyone exists, and almost no one exists fully - at least not in society. Only the people who might be called “fortunate”, that is that their lot seems to support their decisions, can existentially satisfy any conscious purpose that might be attributed to their particular existence. Whether this power is gained or one is born into it, I don’t know but I can see that it is possible to create beneficial circumstances for such a birth. A controlled, technologically sustained “paradise” for a number of carefully selected gene-pools would be a scientific experiment deserving rational support.
Truth can be taught to sustain an enduring diversion from power. - Power was in the past, and it was evil - or the other extreme - power is eternal and it is in us all. No one of these is real, power is real and it is now, and you know it if you have it.
Whoever would stop rolling down the hill and manage to get hold of something real, and from that root on make an assessment of the situation he finds himself in, must see a lot of individuals crashing by into a deep slope. Whether the bottom is visible or not, it would be perceived as a frightening and surreal ritual.