actually - most of the wassails have religious connotations, depending on which local legends you adhere to. (How does one phrase that correctly? depending on the local legends to which you adhere?) And if you believe, as many do, that they are "hangovers" from pagan ritual, then they are most certainly religious.

But whichever way you go, virtually every wassail asks "blessings" on something, which technicaly makes it a prayer.