Real Inside of the human system
We all think that we know the inside of things – we talk of knowing things inside out, of having inside information and so on, but if we think over it, we will realise that all we see of objects is the outside only. Even when we are inside a room, all that we see is but the outside of the inside, if I may so term it. The real inside ever escapes us! And this is precisely the region of Master's spiritual work – the inside of the human system! It is not surprising that both this region and the work done there escape our observation, however trained and acute it may be.
Taken from the book "Yatra, Vol. 1", Chapter "Preface", pg. 5, by Revered Chariji