The "Battle" in the title is often interpreted as a metaphor for an internal struggle for the soul and a search for meaning in a modern world.
Odnoklassniki was popular in Russia and surrounding countries. In 2005, the internet was different, so maybe "Battle in Heaven" was a viral social experiment or a flash game that spread through the social network. I should consider similar phenomena of the time, like the "Second Life" game around 2003, or other early social media experiments. battle in heaven -2005- ok.ru
Please let me know if you'd like me to modify anything! The "Battle" in the title is often interpreted