The reality/reasoning for Hell – The “Lake of Fire”…a sincere warning…
The reality of man’s judgment for sin is in no way “vague” in the Scriptures; if your sin is not atoned for by the blood of Messiah Jesus by faith in Jesus as your Messiah, you will NOT enter the Kingdom of God (John 3); therefore, the default for your corrupted resurrected body, mind, soul, subsequent internment in Hades-Torments, is extinction, the “second death,” as there remains no place for your chosen defilement (Revelation 20:11-15).
Do not be deceived, the Father is NOT going to allow your rejection of His righteousness, His eschatological plan for Time and Eternity through the Son, Jesus Christ, to be stymied, polluted, endangered, by your rebellion. The Father has been through that scenario once and suffered unconscionably to restore holiness and righteousness to His Kingdom defiled by the very sin you covet; therefore, you will not be allowed to repeat it as nothing impure will enter His Kingdom (Revelation 21:27).
ONLY those who have received the imputed righteousness of Jesus Christ by faith as atonement for their sin, their corrupted nature buffered by the new creation in Christ via the Holy Spirit (2 Corinthians 5:17; Galatians 5:16), will enter the Kingdom, the New Jerusalem, and live with Messiah forever (2 Corinthians 5:21; John 14:6; John 3).