What are the hidden mysteries of nature and science?

The hidden mysteries of nature and science represent the field of research and intellectual inquiry opened to a Mason, grounded in the liberal arts and sciences. A mason's attention is permitted to extend his research into these hidden mysteries, with the liberal arts and Geometry serving as the basis of the art, as an article on the Grand Lodge of India's website explains.

This contemplation is designed to fill the mason with a sense of wonder, awe, and respect for the mighty works of the Almighty, while encouraging the study and mastery of the liberal arts and sciences within the compass of one's attainments, as an article on the Grand Lodge of India's website further notes. Through this study, the hidden laws of the natural world and the mathematical order underlying creation are framed as subjects for moral and intellectual elevation.

The historical library supplied for this response contains no specific passages on this phrase, so the explanation rests on contemporary descriptions.