Oh, it is dangerous to love to be wise above what is written, to be curious and unsober in your desire of knowledge, and to trust to your own capacities and abilities to undertake to pry into all secrets, and to be puffed up with a carnal mind. Souls that are thus a-soaring up above the bounds and limits of humility, usually fall into the very worst of errors, as experience doth daily evidence. Thomas Brooks-- Precious Remedies Against Satan's Devices.
This is no prohibition against seeking the spiritual application, as you re-read it, the caution is about pride not mystery.
"All the Athenians and the foreigners who live there spent their time doing nothing but talking about and listening to the latest ideas."