Recently, I felt a pressure-like aura on my head, and it was quite painful until I managed to absorb it. After overcoming that, it seems that the energy channels (nadis, in yoga terms) in the back of my head have opened more than before, allowing energy (prana) to flow from the throat chakra (Vishuddha) to the Anahata chakra and below. This was something that had been happening before, but the energy now flows more easily. In my case, the back of my head tends to become blocked easily, and it seems to have reverted to a slightly previous state. However, with the increased flow, I feel that it has become easier to maintain the open state of the Sahasrara chakra.

In this state, not only does energy flow from the back of my head along the spine (the Sushumna nadi, in yoga terms), but the entire space, not just the head, but also the shoulders, arms, and so on, is filled with a shower of light, and I feel like I am being bathed in that shower of light.

Along with this, I used to use techniques like Khechari Mudra (lifting the tongue) to raise Kundalini energy from the lower abdomen and Anahata chakra towards the head. Now, it feels like that rising energy is merging with the shower of light, as if the Kundalini energy is being bathed by the shower of light from above. This fusion seems to be happening throughout the body, but I feel it most strongly in my head, where the Kundalini energy, rising through the Vishuddha chakra, is becoming more refined and continuing to rise due to the shower of light from above.

Although there is a difference between the upward and downward directions of each energy, it is not like they are colliding. It is probably because they have slightly different dimensions, and the shower of light is constantly pouring down, penetrating the Kundalini energy, while the Kundalini energy continues to rise unchanged.

Even in this state, I have been experiencing a "mishimishi" sound in the center of my head, which I have been experiencing continuously in my daily life. The center of my head still does not seem to be completely relaxed.

It is well known in spiritual or psychic circles that headaches can occur as one progresses. In my case, it is not a headache, but rather a constant "mishimishi" sound or a "piki" sensation that has been continuing for a long time. Recently, the frequency has increased, and now it happens with every breath, or every few breaths, or every few seconds, with a "mishimishi" sound or a "piki" sensation. I wonder if this can be heard by others. If it can be heard, it would be a nuisance to others, such as in a movie theater, so I wouldn't be able to go. This "mishimishi" sound has been present for a while, and I think it was happening about six months ago, but the frequency was low and I didn't pay much attention to it. Since the beginning of this year, the frequency has increased, and it seems to have accelerated with the opening of the Sahasrara chakra and the entry of Purusha. About a month ago, I could concentrate on meditation, do Khechari Mudra, and after a while, it would "piki" and loosen. However, for the past week, the frequency has been high, and sometimes it makes a "mishimishi" sound with each breath. And, while it used to mainly happen during meditation, and there were times when it happened in daily life, it was only when I was sitting in a chair and relatively stable, or when I was walking and calm. Now, it seems that the stability has increased, and it often makes a "mishimishi" sound in my daily life. The frequency is different.

Before and after the point where I started to feel a shower of light, I felt that the stability increased, like a "mishimishi" sound. And I think that might mean that the stability to live in a meditative state in daily life has increased.