Inter-Dimensional Defined:

Inter-Dimensional Art is a type of Surrealism that seeks to represent and explore the transcendental experience [of Artist and Audience(s)] existentially. 

While it contains visionary elements of the metaphysical and in most cases, qualities associated with altered state of consciousness it is not limited to flat surfaces such as canvas (although that is a predominant medium). 

Artists freely create Inter-Dimensional Art to convey an unusual perception of depth, with mathematical patterns, and explore spacial boundaries to accomplish subtle healing sensation(s) of movement, in order to transform the growth of Artist and Audience, as well.