Now I must admit that the sin is not absolutely new, for it fits into the known category of lust.

But it has been neglected since pagan days, and was never well defined in any case." "Do not keep me in suspense.

What is this sin ?" "It isn't easy to explain.

Nevertheless I will try.

Lust, I believe, can be classified into: ordinary sin, sin against nature, bestiality, and let us add _demoniality_ and sacrilege.