Therefore it can only be known in the total absence of conceptualisation. This is why absence of mentation, of which conation is an element, has been universally recognised as an essential condition of what has been picturesquely termed awakening to 'enlightenment', more accurately 'disidentification'. Conation, or volition, being a direct expression of the subjective, or egotic, aspect of mentation, precludes any possibility of such inseeing - since that is outseeing from a psychic subject which itself is an object and, as such, purely conceptual. We can deify it if we wish, and term it 'divine' as opposed to 'human', 'Heaven' as opposed to 'Earth', but what it is calls for no devotional or affective approach, which must necessarily conceal it as effectively as an intellectual search. Never could it be 'found' - for what it is, where it is, and when it is, is precisely what, where, and when, the searcher is who is seeking.
Time is, therefore, an extension of space in duration, and so a further direction of measurement.
Space-time as a single concept then utilises four dimensions, three spatial and one temporal. For those concerned with the doctrines of various forms of Buddhism, or as propounded by successive Buddhas, the Nth or inclusive measurement of volume is what is variously described as 'the Void', 'the Middle Way', and 'Dependent Origination'. The third may be said to find its explanation in super-volume.