Some schools see a terd floating in a pristine white bowl of fresh water and shriek, "oh my energy, oh my dear prana". And then they faint and need ayur-vedic smelling salts, made in vastu proper factory, chanted over by vedic pudits, or something, to revive them.
Other schools, like the Aghori ascetics, are the John Waynes of Spiritualism. "Because of this monistic doctrine, the Aghoris maintain that all opposites are identical and that the conventional Hindu distinctions between purity and impurity are ultimately illusory. The purpose of embracing pollution through various practices is the realization of non-duality through transcending social taboos, and seeing the illusory nature of all conventional categories. ... Aghoris are known to prove their faith by challenging pre-conceived notions of the grotesque, and find the beauty or perfection in such conventionally taboo notions as, for example, cannibalism." "Aghoris " go naked or wear the shroud of a corpse, he covers himself in the ashes of the cremation ground--which would be polluting for an orthodox Brahmin--and his ritual practices are symbols of his non-dualistic beliefs. The corpse upon which he meditates is a symbol of his own body and the corpse devouring ritual is a symbol of the transcendence of his lower self and a realisation of the greater, all pervading self." (And the notion of some that MMY is an aghori is, well, quite laughable.) http://en.wikipedia.org/wiki/Aghori
