secular and disbelief
1. What does "secular" mean here? Not relating to religion?
2. what does "The idea of Carl André’s bricks still induces a shudder of disbelief in some areas of the British press." want to say? Is there any relation between "secular" and "disbelief" in these two sentences?
Context:
The honed-down minimalism of the former does possess a severe beauty, as do the gloriously synthetic colour arrangements of the Pop artists, but it is up to the viewer to confer his or her own spiritual meaning on such works and most of the world regarded them as outrageously secular. (The idea of Carl André’s bricks still induces a shudder of disbelief in some areas of the British press.)