It may well be, therefore, that the true meaning of life is not to be found in what is objective, but in what is subjective (but still universal). - Jordan Peterson

Untruth corrupts the soul and the state alike, and one form of corruption feeds the other

You must determine where you are going, so that you can bargain for yourself, so that you don’t end up resentful, vengeful and cruel. You have to articulate your own principles, so that you can defend yourself against others’ taking inappropriate advantage of you, and so that you are secure and safe while you work and play. You must discipline yourself carefully. You must keep the promises you make to yourself, and reward yourself, so that you can trust and motivate yourself. You need to determine how to act toward yourself so that you are most likely to become and to stay a good person. It would be good to make the world a better place.

Viktor Frankl, the psychiatrist and Nazi concentration camp survivor who wrote the classic Man’s Search for Meaning, drew a similar social-psychological conclusion: deceitful, inauthentic individual existence is the precursor to social totalitarianism. Sigmund Freud, for his part, analogously believed that “repression” contributed in a non-trivial manner to the development of mental illness (and the difference between repression of truth and a lie is a matter of degree, not kind). Alfred Adler knew it was lies that bred sickness. C.G. Jung knew that moral problems plagued his patients, and that such problems were caused by untruth. All these thinkers, all centrally concerned with pathology both individual and cultural, came to the same conclusion: lies warp the structure of Being. Untruth corrupts the soul and the state alike, and one form of corruption feeds the other.