It may indeed happen, that after he has, in this manner, engraved the religious opinions deep into his thought and imagination, there may arrive a change of health or circumstances, which may restore his good humour, and raising cheerful prospects of futurity, make him run into the other extreme of joy and triumph.

But still it must be acknowledged, that, as terror is the primary principle of religion, it is the passion which always predominates in it, and admits but of short intervals of pleasure.
Not to mention, that these fits of excessive, enthusiastic joy, by exhausting the spirits, always prepare the way for equal fits of superstitious terror and dejection; nor is there any state of mind so happy as the calm and equable.

But this state it is impossible to support, where a man thinks that he lies in such profound darkness and uncertainty, between an eternity of happiness and an eternity of misery.
No wonder that such an opinion disjoints the ordinary frame of the mind, and throws it into the utmost confusion.

And though that opinion is seldom so steady in its operation as to influence all the actions; yet it is apt to make a considerable breach in the temper, and to produce that gloom and melancholy so remarkable in all devout people.
It is contrary to common sense to entertain apprehensions or terrors upon account of any opinion whatsoever, or to imagine that we run any risk hereafter, by the freest use of our reason.

Such a sentiment implies both an absurdity and an inconsistency.