Anything can become a replacement idol. In chapter 22 we find out that it can be something as wonderful as a father’s love for his son.
When a road sign that tells me that the road is closed, bridge is out, or the water is too high I am silently grateful. (Although, sometimes I grumble at the inconvenience, but don’t tell anybody that.)
If I said I was going to swim from San Diego, CA to the Fiji islands non-stop. You would probably laugh and then tell me that’s an impossible task, not to mention dangerous.