It clears when going offline

It clears when the player dies

It can be cleared by double clicking it

Cloud Sea Gazing: When successfully blocking an enemy attack, gain 1 stack of Cloud Sea status for 9 seconds, up to a maximum of 3 stacks.
For each stack of Cloud Sea status, gain an additional 5% internal power critical strike rate when using Floating Sky and Vast Sea and Autumn Night Dreaming.