What is "Community" by John Donne about? I don't understand it (poem in details).?

GOOD we must love, and must hate ill,

For ill is ill, and good good still;

But there are 1 things indifferent,

Which we may neither hate, nor love,

But one, and then another prove, 5

As we shall find our fancy bent.

If then at first wise Nature had

Made women either good or bad,

Then some we might hate, and some choose;

But since she did them so create, 10

That we may neither love, nor hate,

Only this rests, all all 2 may use.

If they were good, it would be seen;

Good is as visible as green,

And to all eyes itself betrays, 15

If they were bad, they could not last;

Bad doth itself and others waste;

So they deserve nor blame, nor praise.

But they are ours as fruits are ours;

He that but tastes, he that devours, 20

And he that leaves all, doth as well;

Changed loves are but changed sorts of meat;

And when he hath the kernel eat,

Who doth not fling away the shell?