"That the God of our Lord Jesus Christ . . . May give unto you the spirit of wisdom and revelation in the knowledge of him: The eyes of your understanding being enlightened." (Ephesians 1:17-18)
The "spirit of wisdom" is applied to a wide variety of circumstances. It certainly includes leadership (Deuteronomy 34:9).
But wisdom is also identified with the ability to make beautiful clothing (Exodus 28:3) and to engineer and invent complex equipment (31:2-6). Daniel was said to have "an excellent spirit, and knowledge, and understanding, interpreting of dreams, and showing of hard sentences, and dissolving of doubts" (Daniel 5:12). We are even promised that our "adversaries shall not be able to gainsay nor resist" (Luke 21:15).
A "spirit of revelation" is also made available to us. This revelation (literally, "to take off the cover") is not new doctrine or truth. Revelation is implemented by the Holy Spirit (1 Corinthians 2:10), having the source of His revelatory work from Jesus Christ on behalf of Christ (John 16:13-15).
The Greek language of the phrase "the eyes of |our| understanding being enlightened" (Ephesians 1:18) could be translated "the vision of your deep thought will be made to shine," or paraphrased in a more colloquial expression, "the light comes on!"
There are three specific enlightenments cited here: The hope of our calling (see Romans 15:13-14), the riches of the glory of our inheritance (11:33-36), and the exceeding greatness of His power exercised on our behalf (Ephesians 3:20; 6:10).
Each of these three are specifically designed by God to undergird our faith and embolden our confidence, even though we are "strangers and pilgrims on the earth" (Hebrews 11:13). HMM III
