This is proof that you've earned the means to stand up against those whom you must. But beware... Your enemies are more powerful than you can imagine. There's no way to know whether you can triumph without confronting them directly.
This is proof that you've reached the maximum Blast Gauge of 9. You can increase your BG using the Stack 3 bonus skill "Blasst". Coordinate your equipment just right, and you can blast off to new heights.
This is proof that you've equipped items that activate a Group Union bonus skill. Each basic skill group has a skill corresponding to each of the five elements. It doesn't matter where on your equipment you have the skills equipped; just equip all five skills in a group to form a Group Union!