Entering Hell
Interpreters have said that if one sees themselves entering Hell and then exiting it on the same day, this vision is considered for those who commit sins and major transgressions, serving as a warning for them to repent and return to God. If they see it but no harm befalls them, this may indicate worldly sorrows and tribulations that affect them in proportion to what they experienced from it.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam