A little while ago, I also experienced a crackling sound and a sudden loosening in the back of my head. This time, however, the area behind both ears gradually activated like static electricity, and then the back of my head also started to activate. Furthermore, the lower middle part of the back of my head loosened repeatedly.

Until recently, the frontal lobe was loosening, but now, suddenly, the area behind the ears and the back of the head started to loosen. It seems like my head is loosening different areas in sequence. When one side loosens a little, it then loosens a different area, and it feels like the loosening is accelerating overall.

By the way, in some spiritual traditions, it is said that at a certain stage of growth, an invisible crystal forms above the ears, allowing access to records of past lives. Also, an invisible crystal is said to form above the eyebrows, and a rainbow-colored arch of light forms from the so-called "third eye" on top of the head, allowing one to receive the "language of light." It's possible that my recent ability to "understand English as English" is just the very beginning of this kind of growth process, and if that's the case, the goal might be to understand the "language of light" beyond language, to transcend the barriers of language. I will keep this possibility in mind.

This stage usually lasts for a short period, about a day or so, and then it returns to loosening the area around the top of the head, focusing on the vertex.

At this point, the loosening in my head is mostly settled, and rather than focusing on the next stage, I feel that I would grow faster if I focused more on the love of my heart. Ultimately, if the heart opens, things like the ajna (third eye) will also become activated. I have been consciously trying to activate my brain for the past 1-2 months because it hasn't been very active, and I think I have achieved a certain level of activation, so I will continue that, but gradually shift the focus to my heart.

Even in this state, the sahasrara chakra at the top of my head still feels stiff. I continue to collect energy, concentrate, and make it crackle while loosening it. Previously, the aura was mainly filling the inside of the skull at the top of my head, but now, I feel that the aura has started to penetrate slightly above the skull, so I feel like I have progressed a little compared to before. However, it still doesn't feel like the sahasrara is fully open.

The center of my head also doesn't feel completely open yet. However, I feel like I am gradually progressing compared to before.