  Skepticism and the issue of whether knowledge that p entails that you know that you know that p are addressed as well as the question of the usefulness of knowledge not only for the purposes of everyday life but also the religious goal of world-transcendence, about which most schools take positions. The authority of testimony, among candidate sources, is considered by some to have special religious importance. Others view yogic perception and/or meditative experience as crucial for religious knowledge, which is usually distinguished from the everyday knowledge analyzed in the textbooks of epistemology.