There are different forms of energy, five primary forms and five secondary forms of energy, and they flow in channels in the body. And at the time of death, there, there's a certain kind of configuration of those energies that occur and you can actually, you can, in a sense, force those energies— maybe that's not the right term, but some people would agree with that metaphor— you can force those energies to enter into that configuration through various forms of yogic practices.