Angels never attack, as infernal spirits do. Angels only ward off and defend. - Emmanuel Swedenborg

Further still, heaven is where the Lord is recognized, trusted, and loved. The different ways he is worshiped — in variations that stem from the difference of activity from one community to another — do not cause harm but bring benefit, because they are a source of heaven’s perfection.

Man, when he is re-born, passes through the ages as he who is born; and the preceding state is always as an egg in respect to the subsequent one, thus he is continually conceived and born: and this not only when he lives in the world, but also when he comes into another life to eternity: and still when he cannot be further perfected, then to be as an egg to those things which remain to be manifested, which are indefinite.

The nature of heaven is to provide a place there for all who lead good lives, no matter what their religion may be.