Some relatively simpe questions, I hope for those out there that can answer.
Is there a precise point in the Mass where tansubstantiation occurs. I don't mean to some generic point such as the Liturgy of the Eucharist, but something more precise, such as when the Priest says certaint words, blesses the host, raises the chalice etc...
(As an aside, if this is the high point of the mass, why do we have collections being taken up at this time, surely all our attention should be directed towards the altar???)
Should all of the hosts being used at the mass be on the altar at this time, or remain in a tabernacle and removed just prior to distribution of Holy Communion. What I mean is, does tansubstantiation occur inside the tabernacle as well as on the alter, even though the priest doesn't say the prayers or hold his hands over them during the Liturgy of the Eucharist?
Also, is it obligatory for the Creed to be said at mass?