Yisro

Yisro med tanchuma 'leimor' Hashem prepared Torah to Himself to say over. R akiva x aliyah x prep. Hachanah x to vaoid mistake, rather kavod for Torah/tzibur. Taharah seems to have been the hachana to matan torah, however the opposite is true as well. - hachana creates taharah. Mesilas yesharim says hazmanh brings taharah purity of thought, & intent to the mitzvah about to be done. This is a form of taharah that can apply to anyone during shovavim. Pause momentarily bef any mitzvah to mentally prepare what you're about to do.