If we here return to the first definition of internal meaning of the idea as a purpose in the sense of "a plan of action," such as "singing in tune," or getting the properties of a geometrical figure, it does not seem difficult to find a basis and meaning for this fragmentary and indeterminate character. First we may note in a general way that it is of the very essence of a plan or purpose to lead on to a fulfilling experience such as singing in tune, or reaching a mathematical equation. But here this fulfilling experience to which the plan points is not a mere working out of detail inside the plan itself, although, indeed, this does take place. If this were all the fulfilling experience meant, it is difficult to see how we should escape subjective idealism.[193] We start with a relatively indeterminate idea and end with a more determinate _idea_, though, indeed, there is yet no criterion for this increased determination. To be sure, the idea as a plan of action, as has already been stated, does undergo change and does become, if you please, more definite and complete as a plan; but this does not constitute its fulfilment. Its fulfilment surely is to be found in the immediate experiences of singing, etc., to which the idea points and leads. The fragmentary and incomplete character of the internal meaning as a plan of action does not, then, after all, so much describe the plan itself as it does the general condition of experience out of which the idea arises. Experience takes on the form of a plan, of an idea, precisely because it has fallen apart, has become "fragmentary." It is just the business of the internal meaning, as Mr. Royce so well shows, to form a plan, an ideal, an hypothetical synthesis that shall stimulate an activity, which shall satisfactorily heal the breach. "Fragmentary" is a quality, then, that belongs, not to the idea in itself considered, but to the general condition of experience, of which the idea as a plan is an expression. If, now, the fragmentary character of the internal meaning is determined simply with relation to the fulfilling experiences, such as singing in tune, adjustments of geometrical figures, etc., to which it points and leads, it seems as if the completion of the internal meaning must be defined in the same terms. And this would appear to open a pretty straight path to the redefinition of truth and error. III. THE CRITERION OF TRUTH AND ERROR