But lately I've been able to manage to get pretty good results gilding and burnishing haloes. Not bad for 35 years of effort! Pretty OK. Not perfect-the gilding is NEVER perfect, there's inevitably a flaw, a fault, a thin spot or a pinhole if you look carefully enough, which why bole is usually red. (The red makes the faults disappear.)
Seems to me an apt, if homely metaphor for grace . The color is wrong, of course - it is our sins that are like scarlet, not grace, but isn't it grace that covers over our faults, failings and sins and makes them disappear?