This quote suggests that when religion feels embarrassed or unsure of itself (blushing), it hides its true essence or power (veils her sacred fires). When this happens, morality, which is often guided by religious principles, unknowingly dies out (unawares Morality expires). Pope is essentially saying that religion and morality are closely intertwined, and when religion loses its conviction or becomes compromised, morality suffers as a consequence.
In today’s world, this can be reflected in the way religious institutions might hide or downplay certain aspects of their teachings to fit in with modern societal norms, or when they are involved in scandals that undermine their credibility. When this happens, followers may become disillusioned and lose their moral compass, as it was initially guided by their faith.
In terms of personal development, this quote might serve as a reminder to stay true to one’s beliefs and principles, even in the face of societal pressure or criticism. It suggests that compromising on deeply held beliefs can lead to a loss of moral integrity. It also emphasizes the importance of maintaining a strong moral compass, independent of external influences, to ensure that morality does not ‘expire’ when religion or belief systems are challenged.