The Medium

Everything and everyone is a medium. What does it mean?
Let us consider an analogy. Everybody drinks water...but would someone drink the same water through a dirty glass? No.. in this context, the glass is just a medium through which water is transferred to a different container..the water is the same. In a clean glass, purity of the water is retained, whereas, in a dirty glass, it may become unsuitable for consumption.
This particular analogy can be applied all around and really helps in unravelling how this existence affects everything that is a part of it (us included). Let us apply this analogy to something like Education..
The water can be likened to the knowledge that needs to be passed and the medium of course is the teacher. Knowledge is pure, untainted and available in abundance, naturally throughout this existence. But it needs a medium for expression, namely through a teacher. If the teacher is like a 'Dirty glass', then sometimes the knowledge becomes unfit for consumption, it may even become poison. And why is that?
If we look a little deeper, there is no such thing as a 'Dirty glass' or a 'clean glass'. A glass is a glass and then there is only 'dirt' sticking onto it. This dirt is not part of the glass, which means that it can be removed. In the context of human beings, there is no 'bad human' or a 'good human'. A human is a human. We only need to be aware of the 'dirt' sticking onto us. And what is this dirt? It is the ego. And what is the ego? Just an attachment with that which is not real. A dirty glass can be cleaned and so can our identification with the ego. This does not destroy the ego, only the identification with it and gradually it too dies..
Only then can someone become a true teacher... acting only as a medium for the transfer of knowledge..having no intention of owning the knowledge that is being passed. Allowing every bit of it to pass on, uncorrupted, in its purest form. The teacher thus becomes a master and the knowledge wisdom. Only then does the true teaching happen...