This symbolism is also applied to experiences in daily life, for example insects and various animals supposedly represent specific things and are interpreted by follwers as 'divine messages'.
For instance, spiders apparently represent complications of one type or another.
Spiders are matter of legitimate concern in Australia because so many are poisonous, even deadly.
Here is an ID Chart
So much a matter of concern that one site has a spider identification chart
Sydney Funnel Spider, Red Back Spider, White Tail Spider. Mouse Spiders etc.
Australia has an array of spiders, some large, if not huge. And some of the poisonous ones are aggressive, adding to the anxiety quotient. (In the US, poisonous spiders are not immediately deadly and tend to hide in woodpiles. Australia's spiders are quite another matter)
Spiders, like wildfire are a matter of concern and legitimate fear in Australia. Spiders are much more than a 'complication' - they can kill outright.
The Sydney Funnel Web spider isnt just poisonous--it is aggressive.
However, spiders are known for another behavior - weaving webs, some concealed underground as funnels, others like nets.