The reason is that it is this very Head itself – as far as we can have any knowledge of it at all – that causes these uncertainties. One moment it seems one way and another moment it seems different. If this Head were completely concealed, we could simply say in one word that its function is hidden from us without going into detail about what it is that is uncertain. However, as I have said, the fact is that all these different and contradictory aspects can be discerned. (They can only appear one after another but they exist simultaneously.) However, it is simply impossible to come to a definite conclusion and determine any one facet with absolute certainty.