Passage
I became in [the] Spirit on the Lord's day, and I heard behind me a great voice as of a trumpet,
I became in [the] Spirit on the Lord's day, and I heard behind me a great voice as of a trumpet,
Revelation 1:8 I am the Alpha and the Omega, saith [the] Lord God, he who is, and who was, and who is to come, the Almighty.
Revelation 1:9 I John, your brother and fellow-partaker in the tribulation and kingdom and patience, in Jesus, was in the island called Patmos, for the word of God, and for the testimony of Jesus.
Revelation 1:10 I became in [the] Spirit on the Lord's day, and I heard behind me a great voice as of a trumpet,
Revelation 1:11 saying, What thou seest write in a book, and send to the seven assemblies: to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea.
Revelation 1:12 And I turned back to see the voice which spoke with me; and having turned, I saw seven golden lamps,
The verse centers on "Spirit", "became", "lord's", "heard", "behind", "great", "voice", and "trumpet". It is saying that the verse draws attention to "Spirit" and "became", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 9's "I John your brother and fellow-partaker in..." into verse 11's "saying What thou seest write in a...", so "Spirit" and "became" belong inside that flow. In Revelation context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "Spirit" and "became" with trust shaped by these words, not by a vague optimism outside the passage.