Dreams Repeat Themselves in Reality

Because of a mysterious magic weapon, a series of disasters occurred, affecting both alien civilizations and ancient martial civilizations... Is it the powerful ancient weapons that are one foot higher or the modern technology that is one foot higher? ! At the end of the road of heaven, do the two end up in the same place or do they have their own merits? The protagonist can dream about his future in his sleep, but he still cannot escape the arrangement of fate. Is he alive? Is it death? Or being reincarnated?