I'm not being derogatory, but Mother Mary may have been wrong. Who knows?The Beatles may have misheard. Knowing the Fab Four, as Mary walked or floated in, music was playing, it was smoky, the boys were having a laugh...she could have been forced to raise her voice over the hubbub and who knows what chinese whispers we've had sung to us.
Poor Mary. It' had been all right for the angels so far. It's one thing to deliver pearls of beauteous divine wisdom to prophets in the desert or to the chap at the head of a procession of nomadic families, or to whisper them in a sleeping ear in the cricket-riven silence of a Cairo night. After being added to the divine wisdom-delivering-posse, she probably wasn't expecting John, Paul, George and Ringo. Poor lass.
So I feel the lady is due some leeway.
'Let it be' is the great pacifier. It is the maxim which leads us to accept that the world is full of difficulty and strife, that nothing is perfect, and that things will come to pass which we cannot control. It helps us to accept these things, and, whilst all this trouble and imperfection and evil is going on, it brings a level of personal peace.
I think it is a cop out. The easy route.
The acceptance of change is wrapped up in 'Let it be', but not the confronting of that which should change, not the objection to evil, not the understanding that the only constant is change and that only in controlling it or directing it or having the courage and awareness of all that change brings in every spinning growing day of this world can we improve things...that isn't there for me.
'Let it change' can be prescriptive, or it can be accepting. If you can look at everything in your world, in your life, in your power, and say, fully and honestly, 'Let it change,' then you accept everything, you acknowledge the driving force of time, but in that you can also come to understand what control you have over what changes happen, and how.
Only the syllable is slightly too long for the rhythm section and it doesn't rhyme with, 'Mother Mary came to me.'