On the night before his execution, he calls for God saying, "Bismillah" ("In the name of God" in Arabic), and with the help of angels, regains his soul from Shaitan (the devil in Islam). Other critics interpreted the lyrics as Mercury's way of dealing with personal issues.
Answer: It was a nod at Freddie Mercury's upbringing in majority-Muslim Zanzibar. The meaning of the usage of the term is vague and has been interpreted as trying to spare either the young man's (depicted in the song) life or his soul. Bismillah means “in the name of Allah/God".