Recently, I have begun to feel that I am finally reaching the entrance to Samadhi, and that this is truly what it means to be in a state of Samadhi.

I have experienced states that I thought might be Samadhi before, but now it seems that those previous experiences required effort, while this new state is gradually becoming one that requires less effort.

There are two types of Samadhi: one that requires effort and one that does not. The latter is considered the true Samadhi. If the true Samadhi corresponds to the stage of dissolving Rudra Granthi, then this makes perfect sense. It seems that before dissolving Rudra Granthi, Samadhi requires effort, and when Rudra Granthi begins to dissolve, it is in an intermediate state, but gradually, a state of Samadhi that requires less effort is becoming stronger. After dissolving Rudra Granthi, Samadhi becomes a normal state that requires no effort. This seems to be a well-structured progression in yoga.

Before dissolving Rudra Granthi, Samadhi is an "action," but after it dissolves, it becomes a "non-action" and a "normal state." This is because, in the former case, one must suppress thoughts through effort to maintain the state of Samadhi, while in the latter case, no effort is required.

However, this is not a sudden shift, but rather a gradual process. The amount of effort required gradually decreases, and eventually, Samadhi can be achieved with very little effort. Then, at the stage of dissolving Rudra Granthi, the balance shifts, and the part that requires less effort becomes dominant.

In my case, I have just passed the peak, so even though it requires less effort, I still feel that a little effort deepens the Samadhi. However, the basic principle is that it no longer requires effort, so it is not a major problem. I just feel that a little concentration deepens the state of stillness and observation.

At this stage, the movements of the limbs become more clearly felt, and the vision becomes more detailed and clear. This is like Vipassana, or perhaps Kanika Samadhi. Previously, both Vipassana and Kanika Samadhi required some effort and willpower, but now, I automatically enter a state of subtle observation.

I think that before entering the state of Samadhi, I was not truly living in this world.

Perhaps there are people who are born with this state, and there are also those who are not. Both groups live as if their perception of the world is the same, but in reality, it is quite different. There are people who live in a state of Samadhi without even realizing it, while others do not. There are many people who live in Samadhi without any practice. In fact, those who practice may develop an inflated ego, which can be problematic. I think it is better to achieve Samadhi in ordinary life.

Once you reach Samadhi, it turns out to be quite simple: just living in this world normally. It is not something special, but rather a fairly ordinary thing. I wonder if there are many people who are unable to do this ordinary thing.

...And the next morning. While dozing before waking up, I suddenly heard a "click" in my head, and the upper half of my head relaxed further. I have heard this "click" almost every day for the past six months, but this time, the relaxation progressed further. Another "click" sounded, and it relaxed even more, and when I woke up and meditated, the relaxation had progressed further than the previous day. It is a cycle of relaxation and tension, but for the past few days, the relaxation has been very good.

However, it is not yet completely relaxed, but it has become slightly easier to enter a state of Samadhi than it was last night, so I think it has stabilized somewhat. Even yesterday, I was able to enter a natural state of Samadhi without effort, but this morning, it seems that it requires even less effort and is slightly more stable.

When I meditate, I still hear "tick-tock" and "crack" sounds in the center of my head, so it seems that it is not yet in a complete state. I will continue to meditate.