Brahmarandra or fontanel is the mode of contact between the outer world and the inner world. It is the threshold to the inner world. It has great significance and this is known only among the sages and worthy disciples who are seriously pursuing the practice of meditation.
Sages, saints and enlightened beings say that when a soul leaves its mortal coil, if his prana or life goes out of brahmarandra, there is no rebirth. That is why we break a coconut on the heads of sages after their mahasamadhi. So, that if there is any life left in them, let it go out of the brahmarandra.
Fontanel is the abode of subtle experiences of meditation and sadhana. That is why, when we chant the mantra given to us by the Guru, we get some sensations at the brahmanarandra.
The kundalini kriya sadhana awakens the Kundalini Shakti from the mooladhara. It makes it go through the seven chakras to finally reach the top of the head or sahasrara chakra. When we chant Hamsa in the end, with the grace of the Guru, we become like Hamsa bird which has the capacity to draw only milk out of the mixture of milk and water. We too will be crowned with power of discrimination or viveka so that we take in only the divine nectar. That is why we call sadhus and sages Paramahamsa. This is because they have attained that state.
This process is called as ‘Metamorphosis’. We evolve from being a pain stricken individual to a ‘Paramahamsa’- Blissful Being adorned with discrimination as a crowning glory. Just like a caterpillar turns into a butterfly, we too evolve from being a himsa jeevi to a paramahamsa.
Going to inner depths during meditation makes us taste the essence of our soul and have the vision of the ‘A Ka and Tha’ triangular formation on our sahasrara chakra. For this, we have to make all attempts or sadhana to go to our moola, our source. Nidhidhyasana or deep contemplation upon spiritual truths revealed in Shri Guru Gita takes us to our inner core. We realise that our source or moola is our atma. We get the taste of our soul’s essence or atma rasa through nidhidhyasana and dhyana. Then only we get intense internal quest- tavaka to go further deep into our self. Through Guru Gita, through Guru Parampara, we can attain what seems impossible possible. We ourselves become the abode of miracles, in other words – we become vaikuntha.
We realise that we are precious and auspicious, we have the strength to get an elephant-like situation under control with the rope called as wisdom or jnana shakti.
The Jnana Shakti or power of wisdom begins from the A Ka Tha triangle in the sahasrara. That is why Lord Shiva calls it the ‘Shakti Trikona’. Shakti and Prakasha kirana or powerful ray of knowledge originates from here. Subtle energy of the soul begins with the sound of Hamsa when the five pranas get intertwined. Hamsa is projected from the heart onto the Sahasrara.
Excerpt from the Force of Nirvana by Shri Shri Nimishananda