Imagine sighing after finishing a detail and it blows out everything you’ve done
That’s basically what these monks do actually.
They create such intricate mandalas to demonstrate the beauty and the fullness of life then blow it all away without a seconds thought to teach us the impermance of life and the “transitory nature of material things”.
Bear in mind that this is a very basic and shallow understanding of the very nuanced and meticulous rituals that surround these sand mandalas.
There might be more details to the ritual but I find most Buddhists like Westerners to walk away with the general gist of the bigger picture of it. Buddhism, as it spread took up many different traditions along the way, including animism or the spiritualities of the indigenous. The details are interesting but not as important as understanding the transience. If those details help, fine, but if it doesn’t aid you into finding enlightenment and only distracts you, let it go.