Complex sentence: This is perhaps the reason the Barongan was ordered to follow the Kuda Kepang forevermore, which is why the Kuda Kepang dance is always followed by a Barongan performance today.
Split into simpler sentences: This is perhaps the reason a Kuda Kepang performance often followed by a Barongan performance. The Barongan was ordered to follow the Kuda Kepang forevermore, which is why the Kuda Kepang dance is always followed by a Barongan performance today.