Heavy, yet something else balances it out.
But as for what it is, I can't quite put my finger on it. Either way, a brilliant piece of work you have here. It's amazing how much good work you've put into these. In fact, I wish I could make this my soundtrack to life. This is intense, but also retains a certain amount of calmness to balance the heaviness. It's like a brilliant food item that professional chefs produce: not too soft, but not too heavy. The perfect balance of intensity and peace. You've got some damn good work here, Gouki! Keep it coming!