The horror of crossing Sirat, which is a bridge that will be established upon Hell and may Almighty Allah safeguard us from it. People will cross over this bridge according to their deeds. A few will pass like a blink of an eye and a few like lightning and a few like the wind, or like a swift horse. For more detail on this topic, visit here:https://www.dawateislami.net/bookslibrary/77