what it takes, something that enables one to achieve success or attain a desired end, as good looks, ability, or money: There's a young woman who has what it takes to get along in the world. what's what, Informal. the true situation; all the facts: It's high time you told him what's what.
Confidence votes 6.3K. The defining costume color of a Roman Catholic Cardinal is scarlet red. The daily wear of a Cardinal is a cassock, a long button-front robe that is ordinarily black, except in the tropics where it may be white. The Cardinal's cassock is trimmed with red and worn with a broad red sash around the waist.
The symbolism is that the bishop, in the person of Christ, is wedded to the Church.   Catholic priests may wear rings, with the exception of wedding rings (unless the priest was once in a different denomination, and was married, latter being accepted into Catholicisim as a priest, still being married).