In theory I accept that what this Yogi is claiming is possible, after all there is an implication of the underlying unity of energy and matter in Einstein's famous E=MC^2 in that it equally followsM=E/c^2. Einstein is quoted as having said,
"Concerning matter, we have been all wrong. What we have called matter is energy, whose vibration has been so lowered as to be perceptible to the senses. There is no matter."
However in practice, since the Yogi requires to be in 'union' (harmony) with his environment in order for the most effective exchange of energy (or any other siddhi for that matter), there is a vast difference in being able to manifest such siddhis in a cave somewhere in the natural wilderness, and manifesting the same result in the midst of a psychically hostile environment generated both by any skeptical/disbelieving human researchers present and the general discordant backgorund vibrations present in a densely populated human society. (BTW, IMHO that is why a genuine 'sensitive' may experience difficulty to replicate certain feats in the presence of say someone like James Randi, for he is able to generate psychic interference vibrations that disturb the background of the local environment. I don't mean to imply that he (Randi) is even aware of it, it is just that skeptic's vibrations are out of phase with the those vibrations conducive to the efficacy of the attempted accomplishment.)
If the Yogi can exhibit even a limited degree of success under research conditions in a metropolitan hospital, then his credibility in terms of exhibiting greater anomalies in his cave environment is high IMHO.
The world is psychic through and through and psycological warfare is not merely taking place in the conceptual reality that mankind is conscious of, but is omnipresent. All vibrations, whether it falls in the conceptual domain of sound, light, energy, mind, spirit, or whatever, they are always subject to the same rules, i.e. that frequencies that are nearest being in phase will add and those out of phase will subtract. This understanding is the basis of all 'magic', both of the white and the black, for it an underlying principle of the nature of the cosmos.
But so far as soldiers being able to be in a state of meditation in the midst of the psychic holographic interference field of a war environment,... well good luck with that, even Arjuna had trouble there and Krishna saved the day.
