The total consciousness is the known, and to pay total attention there must be freedom from the known, which means there must be no centre from which there is attention. The centre is the known, the centre that censors, that condemns, judges and evaluates. From that centre, you look, observe, attend, and therefore it is no attention or observation; it is partial, like a half-asleep mind looking. To be free of the centre is to see that there can be attention only when there is no centre. There is attention if you see that truth immediately.