In the past we posted about kneeling during Mass. There is a nice reminder from RealCatholicTV.com's Vortex today on kneeling at Communion, and receiving on the tongue instead of the hand. Some other videos are also provided by Cardinal Francis Arinze and Bishop Athanasius Schneider that pertain to the subject. Lets not exclude the document from the Congregation for Divine Worship on "certain matters to be observed or to be avoided regarding the Most Holy Eucharist."
