There was a scientist in Lebanon who researched the human brain. He found that there are many things that cannot be detected by a microscope, but require complex instruments. So he used instruments that could catch vibrational frequencies and took images of various parts of the brain. What he found was that the physical images of all the important spots in the brain are replicas of various gods and goddesses. For example, there are spots which look exactly like Ganesha, Hanuman, Devi or the yoginis.
Ganeshas place is at the door of the brain, called medulla. The enlarged image showed two big ears, a trunk and tusks. So Ganesha sits at the door of the mind; he is the gatekeeper and decides who should go in or not. If a negative influence tries to enter the brain, he stops it right there. Therefore, he is called vighna vinayaka, remover of obstacles. These obstacles are in the mind.
The brain controls the individual, and it is the home of the gods and goddesses. This human head is the abode of deities, the gods live here. We call them gods and science calls them medulla and hypothalamus. Right in the centre of the head, the centre of the brain, there is a small empty space, where there is nothing. I have also seen that. The way the seed of a banyan tree is empty at the centre, there is a small empty space in the centre of the head. That is the abode of Para Shakti, the cosmic energy who governs the whole body, who runs the whole creation. She has been described in the Devi Bhagavat, a scripture of the Shakta tradition. It describes the house of Devi the rampart, the guards, the rivers and channels, the forests and hills. All that is a description of the brain. The description of the abode of Devi in the Devi Bhagavat is a description of your brain. It is an exact match. What science has found through research, Devi Bhagavat tells in the form of a story.
What is visible outside is actually happening inside. This is the view of our scriptures, our saints and sages. Thus a human being should not struggle externally but awaken the gods within, for these deities of the mind usually remain asleep. All the methods to awaken the gods are equally good you can worship a stone or a tree, go on a pilgrimage or serve your guru.