Yoga, however, is scientific to this extent that it proceeds by subjective experiment and bases all its findings on experience; mental intuitions are admitted only as a first step are not considered as realisation- they must be confirmed by being translated into and justified by experience. As to the value If the experience itself, it is doubted by the physical mind because it is subjective, not objective. But has the distinction much value? Is not all knowledge and experience subjective at bottom? Objective external physical things are seen very much in the same way by human being because of the construction of the mind and senses; with another construction of mind and sense quite another account of the physical world would be given-Science itself has made that very clear. But your friend’s point is that the Yoga experience is individual, coloured by the individuality of the seer.
It may be true to a certain extent of the precise form or transcription given to the experience in certain domains; but even here the different is superficial. It is a fact that Yogic experience runs everywhere on the same lines. Certainly, there are, not one line, but many; for, admittedly, we are dealing with a many-sided Infinite to which there are and must be many ways of approach; but yet the broad lines are the same everywhere and the intuitions, Experiences, phenomena are the same in ages and countries far apart from each other and systems practiced quite independently from each other.
The experiences of the mediaeval European bhakta or mystic are precisely the same in substance, however differing in names, forms, religious colouring etc., as those of the mediaeval Indian bhakta or mystic- yet these people were not corresponding with one another or aware of each other’s experiences and results as are modern scientists from New York to Yokohama. That would seem to show that there is something there identical, universal and presumably true-however the colour of the translation may differ because of the difference of mental language.