When a supersonic aircraft is approaching the speed of sound, the pressure waves build up in front of it, getting stronger and stronger. The aircraft starts to shake with the pent-up energy. Then, suddenly, there is a sonic boom and the plane has broken through the sound barrier. With that, everything becomes smooth. I mention this because in meditation, occasionally, it feels like something similar is happening. So it was for me, in the Matrimandir this morning.
I was sitting there in the intense silence of the inner chamber. My mind was empty of thoughts but there was a feeling of energy in the head. It grew stronger and stronger until my body was trembling and having little spasms. It felt rather like my head was going to explode. Then suddenly there was an instantaneous release of the built up energy. With that, the consciousness entered into a vast, empty space of utter tranquility.