Mana Stones

[Mana Stones] carry a special type of energy that can be released by tapping the stones.

The energy weakens the Magical Chest Barrier in the bottom left corner of your meadow:

Once the gauge is filled with energy from collected [Mana Stones], the dome on top will disappear and you will be able to receive the reward chest on the little floating island.

Object Information
There are currently 9 different levels of [Mana Stones]: