And as regards this possibility of correctly conducting self-observation and conducting it without the risk of incurring the maleficent consequences which have more than once been observed from people’s attempts to do this without proper knowledge, it is necessary that the warning must be given — in order to avoid the possibility of excessive zeal — that our experience, based on the vast exact information we have, has shown that this is not so simple a thing as at first glance it may appear. This is why we make the study of the mechanicality of contemporary man the groundwork of a correctly conducted self-observation. BTG XLVIII