brachot 28

standing & praying at the entrances - of the previously exclusive study hall,
and of the World to Come

and the one who dreams of white vessels enters the blackened house



(the revolution that deposed Rabban Gamliel, that led to more people having access to the study hall. prayers said by R. Nehunya ben Hakana on entering and exiting the study hall, and blessings and prayers said by various rabbis on their deathbed to their students. and the 18 blessings of the standing prayer parallel the vertebrae. for english translation of this talmud page see here)