In the book of Proverbs, King Solomon speaks of the importance of wisdom and understanding, which are closely related to rationality. 

He writes, “The fear of the Lord is the beginning of wisdom, and knowledge of the Holy One is understanding” (Proverbs 9:10). 

This fear is not a fear of punishment, but rather a reverence and awe for God’s power and wisdom.

Through this reverence, we are able to connect with the universe and understand its workings. 

The book of Psalms speaks of the heavens declaring the glory of God, and the firmament showing his handiwork (Psalm 19:1). 

By studying the rational principles that govern the universe, we are able to see the hand of God at work.

However, this understanding goes beyond mere practical applications. 

It is a spiritual path that allows us to transcend our own biases and assumptions. 

The Apostle Paul writes in his letter to the Romans, “Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is – his good, pleasing and perfect will” (Romans 12:2).

Through the rationality that comes from a connection with the divine, we are able to see beyond the limitations of our own understanding and see the greater truths that lie beyond. This is the essence of spiritual rationality – a path that leads us to a deeper understanding of the universe and our place within it.