Periastrapto describes a light suddenly shining around someone near Damascus.

The two occurrences depict a sudden light from heaven shining around a traveler as he approaches Damascus.

1. Light shining suddenly around a person · dominant

   In Acts 9:3, the aorist active indicative occurs as a light from heaven suddenly shines around him while he draws near Damascus. In Acts 22:6, the aorist active infinitive occurs in the report of a sufficient light from heaven shining around the speaker as he approaches Damascus.

   Acts 9:3Acts 22:6

In the Anselm Project Bible: Across Acts 9:3 and Acts 22:6, the APB presents the event with a light from heaven that "shone around" the person.