as it should be

[phoebemia]

The following sentence is from David Goggins Interview on Youtube:
If you really appreciate everything you do have, and believe everything is as it should be, all of those big things can be handled much better.

My questions:
1. Is as a conjunction here? Does it mean like?
2. "believe everything is as it should be", What does the part mean? Believe everything is just the way it should be?
3. Could you give me more example sentences with this usage of as?

 

[Tarheel]

If everything is as it should be everything is the way it's supposed to be.

 

[Tdol]

You could, and many would, use like there.