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The great Jain yoga scholars have described yoga rationally in all realities and details both gross and subtle. However, surprisingly they also succumbed to the temptation of attracting gullible people by prescribing concentration and contemplation on non-existing noumena the imaginary chakras, colours and objects and the implicit weird and occult fantasies and hallucinations. Acharya Mahapragya who is leading yoga scholar and yoga teacher presently has equated imagined chakras (centres) to various endocrine glands to scientifically justify the practice of concentration on these centres though keeping the same nomenclature for these centres as in Vedic stream. The fact however is that such practices sitting idle is waste of time. The best practice of Dhyan is to concentrate and remain absorbed in the work in hand and if one masters it then it is easier to stop wavering of mind. Acharya Mahapragya has also emphasised meditation on imagining various colours, not actual colours face to face on the pretence of ‘Laisyas'. Of course colours if actual and face-to-face on walls of house or clothes will have effect because there are chemicals in them, but not in just imagining. 'Laisyas” are not colours but modes (emotions and thoughts) good and bad and have only been compared with colours only to explain their intensity and nature. The modern Jain yoga scholars and teachers are also following both trends rational based on real phenomena as well as irrational noumena, of course each yoga teacher introducing modifications and articulations to establish his own distinct identity.