You create a moving 5-foot-radius, 10-foot-high barrier lasting 5 minutes, blocking aberrations from entering or affecting the area.
If you move into the target creature of the designated type, the effect stops working.
An ethereal shield envelopes the target, fortifying the mind against the unsettling influence of aberrant beings. In this guarded state, sanity and willpower stand resilient against the alien forces that seek to unravel them.