By John Mikes Ph.D. 27 October 1998 Professor V.V.Raman composed definitions about human mentality, as seen through the lens of science and spiritual considerations. Theoretically, one may consider levels of reality which are beyond human perception, If such exist, they are beyond the scope of science.
Perception refers to awareness resulting from the normal functioning of the sensory faculties.
Even science does deal with 'abstractions' of the perceived, not sensorially accessible per se, eg. Much of our understanding of the microcosm would be impossible without sophisticated mathematics. A definition of non-quantitative, but scientifically acceptable may come handy. Likewise, electromagnetic waves beyond certain frequencies cannot be seen. They are filled with content deduced from the observable, to fit into the mentioned 'edifice'.