I dreamt that there was a person playing the flute in front of a snake, a cobra. But the flute sound was not melodious. It was a very deep and long sound with a powerful vibration, a little bit like when people sing ‘omn’ or ‘aum’. Slowly, the snake moved upwards. 

I then noticed another very big snake head just beside it. My attention was diverted to that giant snake (not a cobra, maybe a python). I forgot the other snake and the flute. That giant snake opened its mouth as if it wanted to bite something. There seemed to be no space for anything else.

The snake charmer is the mind who raises the kundalinii which is the cobra by his flute playing (which is sadhana / spiritual practice). 

The python is Parama Purus'a who is watching and gradually invades the scene, superimposing itself and demanding complete attention. Eventually it merges all into one.