Sivananda Yoga FAQ
Sivananda Yoga FAQ Q 1: How does the Yogi see the subtle rudiments of matter with his Yogic vision? As you would see the material objects with the help of a material instrument in the form of the eye, the Yogi would see subtler objects through the help of subtler instruments. Except in the plane of intuition, in all other lower planes, there exists a subject-object relationship as far as cognition is concerned. The only thing is: the instrument used in perceiving the object should be of the same material of which the object [...]