V. Can a method of gaining insight into spheres beyond the sense-perceptible world be given a scientific basis?

We now need to consider how the thesis ‘I think, therefore I am not’ can be established. For this, we energetically pursue in the science of the spirit the kind of thinking that leads to the erroneous thesis ‘I think, therefore I am’ ( cogito, ergo sum). It would be as if we were attaining to thought and then not going any further. In the science of the spirit we cannot simply stop at thinking. Our thinking must be strengthened; we have to apply an inner activity to our thinking which may be called ‘meditation’.