The Kernel (カーネル, Kāneru), also known as "Heaven" (天界, Tenkai), is the core of the Digital World's universe as well as being God's domain. This place exists in a higher dimension to that of the Digital World itself and all Angel Digimon come from here. It is the primary duty of the Three Great Angels to protect this place and lead God's Army. Rasielmon possesses the mysterious power to foresee everything in the world from there.
None, it is only mentioned in the Virtual Pets' storylines and into the Angel Digimon's profiles themselves.