To whom it was revealed, that not to themselves but to you they ministered those things, which have now been announced to you by those who have declared to you the glad tidings by [the] Holy Spirit, sent from heaven, which angels desire to look into.
1 Peter 1:10 Concerning which salvation prophets, who have prophesied of the grace towards you, sought out and searched out;
1 Peter 1:11 searching what, or what manner of time, the Spirit of Christ which [was] in them pointed out, testifying before of the sufferings which [belonged] to Christ, and the glories after these.
1 Peter 1:12 To whom it was revealed, that not to themselves but to you they ministered those things, which have now been announced to you by those who have declared to you the glad tidings by [the] Holy Spirit, sent from heaven, which angels desire to look into.
1 Peter 1:13 Wherefore, having girded up the loins of your mind, [be] sober [and] hope with perfect stedfastness in the grace [which will be] brought to you at [the] revelation of Jesus Christ;
1 Peter 1:14 as children of obedience, not conformed to [your] former lusts in your ignorance;
The verse centers on "Spirit", "revealed", "themselves", "ministered", "things", "been", "announced", and "declared". It is saying that the verse draws attention to "Spirit" and "revealed", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 11's "searching what or what manner of time..." into verse 13's "Wherefore having girded up the loins of...", so "Spirit" and "revealed" belong inside that flow. In 1 Peter context, the local focus is hope in suffering, holy conduct, submission, and grace.
A plain takeaway is to answer the verse's own emphasis on "Spirit" and "revealed" with trust shaped by these words, not by a vague optimism outside the passage.