This is earned upon clearing the Besaid Cloister of Trials.
*** Spoiler - click to reveal ***
1.Touch the Glyph on the North wall, another Glyph will then appear on the East wall.
2.Touch the East wall glyph and proceed down the stairs.
3.Examine the wall slot and a Glyph Sphere will appear. Examine the slot again to take the Glyph Sphere and continue down the stairs to the West.
4.You will see a door blocking your path, place the Glyph Sphere in the door slot to open it.
5.Take the Glyph Sphere out of the now open door slot, proceed down the path and place it in the West wall slot you come across. The wall will rise revealing a room with the Destruction Sphere.
6.Continue down the path and you will see a pedestal/wall slot to the left, and some text on a wall to the right. Touch the wall text on the right, a wall will rise revealing a room with the Besaid Sphere.
7.Take the Besaid Sphere and place it in the pedestal/wall slot in the previous room. The wall will disappear leaving the pedestal and revealing a hallway.
8.Go back to the room with the Destruction Sphere and take it, place it in the slot where the Besaid Sphere was previously, will reveal another room with a chest.
9.Open the chest! (Rod of Wisdom)
10.Proceed back to the pedestal and push it all the way to the floor slot at the end of the hallway. A cutscene will play afterwards.
11.You've cleared the trial!