I suspect that religion is a necessary evil in the childhood of our particular species. And that's one of the interesting things about contact with other intelligences: we could see what role, if any, religion plays in their development. I think that religion may be some random by-product of mammalian reproduction. If that's true, would non-mammalian aliens have a religion?
Religion should unite all hearts and cause wars and disputes to vanish from the face of the earth; it should give birth to spirituality, and bring light and life to every soul. If religion becomes a cause of dislike, hatred and division, it would be better to be without it... Any religion which is not a cause of love and unity is no religion.
True religion is not talk, or doctrines, or theories, nor is it sectarianism. It is the relation between soul and God. Religion does not consist in erecting temples, or building churches, or attending public worship. It is not to be found in books, or in words, or in lectures, or in organizations. Religion consists in realization. We must realize God, feel God, see God, talk to God. That is religion.
The First Amendment...does not say that in every respect there shall be a separation of Church and State....Otherwise the state and religion would be aliens to each other - hostile, suspicious, and even unfriendly....The state may not establish a 'religion of secularism' in the sense of affirmatively opposing or showing hostility to religion, thus preferring those who believe in no religion over those who do believe.