Note: There are some obvious things to realise about this phrase (“This too shall pass”).
-- These are:
1. This phrase (“This too shall pass”), is actually telling you, that suffering is something that “comes and goes”.
-- So, if suffering is constantly “coming and going”, then this means that suffering is something, that is going to keep appearing in life.
-- And, if suffering is going to keep appearing in life, then what's the point of staying in this thing called life.
-- Moreover, it’s pure stupidity, to stay in a place, which you know will cause you suffering.
2. If this is a phrase that is, “said by wise saints/sages/gurus/teachers/enlightened-beings/etc, throughout the centuries”, then this means that suffering is something that has been happening for centuries.
-- Ie, this means that, all these saints/sages/gurus/teachers/enlightened-beings/etc, have not been able to reduce/prevent/stop/eliminate suffering.
Therefore, suffering is something that will always be in life/existence, which therefore means, that suffering is something that is inherently built into existence, (or, is a part of existence, or, existence is made from suffering, etc).
And it also means, that after centuries, there is still no solution to suffering.
So, the key point is, that:
If the only way for existence/life to exist, is if suffering exists, then existence is not worth having.
Moreover, it’s pure stupidity to want existence/life, since the percentage/ratio, of the total number of minutes of suffering (in a person’s life), as compared to the total number of minutes of true freedom/peace/love/bliss (in a person’s life), is 99% (as compared to 1%).
Indeed, when it’s put like this, it’s obvious that it’s not just about stupidity, but something a lot more cruel/evil/malevolent, (because no one would truly consent to an activity that has 99% suffering, (especially if that activity has no freedom/choice/option, of a way to leave that activity, in an instant/painless/effortless/guaranteed/permanent way)).
So, what this means, is that whilst you’re suffering, if anyone is advising that you should “just let this pass”, they’re actually advising you to “just accept this”, (ie, they’re trying to brainwash/program you, to believe that “suffering is acceptable”), and therefore, they’re responsible for perpetuating/creating/maintaining/causing suffering, and therefore, they’re inherently cruel/evil/malevolent.
And therefore, if these phrases are said by saints/sages/gurus/teachers/enlightened-beings/etc, then these people/entities are inherently (by definition), cruel/evil/malevolent.