Minds may be tampered with. To think straight, see what agreements are at work in your confines. Sociologists have sought to measure many sides to social living, and to know of their findings help some, to some degree - maybe much. The help derived from studies and measurements depend on how manageable the results may be, and how easy to work with.
On top of sound measuring, agreement and trust could rise.
One may learn how to gain well pointed attention - that is, focus. Guard the mind with care against what offends. So, by sustained, pointed attention (focus) the mind tends to become interiorised. This is a feature imeditation progress.
Ways to train the well interiorised mind are enumerated in Patanjali's Yoga Sutras, part 3. Such training may seem fantastic. Better be warned about that.
Apply only what is sane, not everything called great
Narcissistic sinning may be tough to get to grips with.
Behind bragging might lie a desire to look great or scare. Someone with a terible need to boast and scare may be tough to deal with. "It will be all over for us . . . the next generation will not give us a thought, " said the guru Yogananda (1982, 344). The next generation and the next came, yet guru followers publish talks and other works in his name. They even want to present him as infallible.
We do not find fault with Paramahansa Yogananda's guidelines. Since we believe that he had attained complete union with God and therefore his wisdom is flawless. [From an eerie SRF letter]
It matters to be warned against unsound dogmatism. In Yogananda's case there is ample evidence that he was not infallible, that his guidelines changed, that some are opposed to other, earlier guidelines, and so on. The World War 3 and 4 did not come when he had predicted either. [False guru prophesies]