Thought is an action with a meaning in addition to a purpose, but so that the purpose of the thought may be its meaning. The witnessing, being intransitive, has nothing in common with this, unlike thought it has neither inside nor outside, agency or act. Its name is a misnomer, registering thought's failure to model it. But thought would be impossible without it. The synthesisng spatialisation that belongs to the transitive character of thought could not arise without it, although the witness is spaceless and timeless. This is strange, since it is demanded by thought but cannot be thought, and hence gives rise to metaphysics or twisted logical topologies. The witness does not say 'I am' and certainly not 'I think', but it can be conceived as the peculiar reality by which the mind holds together, gains a context so that one mental motion can exist in relation to another on the same plane as their very relationship; for example the founding distinction, existing only in thought, between the thing and the thought of the thing. Experience needs these unities in order to hold together, and they are not supplied by the witness - it supplies nothing - but by thought borrowing from, or leaning on, the witness. If the structure of reality is damaged in some way the witness does nothing to correct this. The coherence and quality of experience is all in the province of the mind.