Why can Indian monks break the color barrier?

Specifically, it is not clear, maybe you understand wrong, from the Sakyamuni Buddha set the precepts to start, the first is the system of the obscenity of the precepts. The Indian monk why break this, such as from the surface, is that he can not keep this precept, from the root, he did not get the benefits of monk, secular heart up to violate the precepts. It may be said that what the life of dual practice, simply in the nonsense, men and women is the root of life and death.