If god's creation was perfect, how did humanity fall? Why was there another being tempting them to disobey?

@walabby I don't think existence has a purpose or meaning,
and I don't think it needs one.
People often need purpose or meaning because it helps them stay motivated to endure all kinds of difficulties. Most of us are able to create our own.
I lost mine a few months ago, and have discovered it doesn't matter. I find I'm now perfectly content just to live and do what's necessary to stay as healthy and happy as possible.
I notice it has a ripple effect. When one is (genuinely) happy it has a good effect on others.

@hartfire Could well be! The reason for human existence could be... no reason!

@walabby As I see it, each individual cell of our bodies has its own automatic will to live, just as single-celled organisms like amoebae do. They can sense toxins and move to evade or nutrients and move to engulf.
When single-cells cluster together they start to cooperate, the ones on the outside helping to collect air and food and pass it through for metabolism, and excrete wastes. The greater the cluster of cells, the more some cells specialise - each larger cluster showing greater collective specialisation and intelligence than the previous version. Each succeeding and proliferating with greater success - the whole always greater than the sum of the parts.

It's hard for us humans to tell whether this will to survive and procreate is an aspect of some primitively developing sense of consciousness like our own sympathetic nervous system, or whether it is merely the automatic result of chemical reactions and physical processes like osmosis - or a combination of the two.

Maybe, one day, we will learn exactly what consciousness is. Could it be a property of every atom? One so nanoscopic that we cannot perceive or measure it at that order of magnitude? One that we can only perceive once it clusters together to produce what we experience as awareness?

If any of this is so, then we have an explanation which needs no reason. It becomes an inevitable result of countless trillions of collisions between atoms, molecules and proteins floating in a seemingly infinite sea of the right components in the right environment - and, given the size of the universe, this too is inevitable in countless places, albeit so far apart in the universe that we could never reach other places where life thrives.

Based on the tidbits of science we've gleaned thus far, I think this hypothesis as plausible.