It seems to me that my lack of faith is not, as I once thought, a triumph of the rational mind, but rather a failure of the imagination - an inability to tolerate mistery.
In this quote, the author reflects on the nature of their lack of faith, suggesting that it is not due to a rational disbelief but rather an imagination failure. They realize that their inability to accept uncertainty and mystery may be the real reason behind their skepticism or disbelief.
The statement highlights how a person's capacity to accept life's mysteries plays a crucial role in faith. It implies that faith requires the tolerance of ambiguity and that failing to embrace the unknown may hinder one's belief system.