In yoga, the concept of Amrita (nectar) often appears. For example, in Hatha Yoga, techniques such as Kechari Mudra and various practices are performed to draw Amrita from a point located on the upper back of the head, which is called the Bindu. In Ayurveda or Hindu mythology, there is a story called "Churning of the Ocean of Milk," where gods drink Amrita (nectar).

Hatha Yoga Pradipika
4.45: The Mudra that is established in the space between the Ida and Pingala channels, which is an unmanifest interval, is called Kechari.
4.46: A flow of Soma (nectar) arises from the moon... (omitted)
4.53: With the nectar that flows from the lunar aperture, moisten the entire body, from head to toe. Thus, one will attain a superior body, courage, and strength.
(From "Yoga Fundamental Texts" by Tsruji Sabota)

Until I reached this point, I wasn't particularly conscious of Amrita (nectar), but suddenly, I realized that the aura-like mass of air that seems to be flowing from the Sahasrara to the heart in my current state might be Amrita (nectar), depending on how you look at it.

However, Amrita (nectar) is often described as "water," and according to Professor Hiroshi Honzan's explanation, this water is something astral. I don't know if Professor Honzan has directly mentioned Amrita (nectar), but since the metaphor of water is used, it seems to be referring to something astral. However, in my case, it feels more like "air" than water, so I can't definitively say that it's the same thing. However, it seems that it might be the same thing, just a difference in sensation and expression between individuals. In my case, I have been feeling and expressing the aura on the surface of my skin as "air" rather than "water" from the beginning, so I'm currently assuming that it's probably the same thing.

If it is the same thing, then I can understand some of the descriptions. Generally, Amrita (nectar) is said to come from the Bindu chakra located on the upper back of the head, but there are some differences in the descriptions depending on the books and schools. In my case, it's not just from a chakra, but rather from the entire upper part of my head, and it feels like it's being generated or entering from there. The upper part of my head feels enveloped in something like air, and then it flows down to my heart with a "puff" and a "smooth" sensation. So, it's air, but it also feels a bit like jelly, so it's not as fluid as water, but you could say that it's not water either. It seems that calling this Amrita (nectar) wouldn't be wrong.

This Amrita, in a certain scripture of Hatha Yoga, states "(It should be drunk) without going down the throat (using the Yoga technique called Jalandhara Bandha)" (refer to Shiva Samhita 4-60, and Zoku-Yoga Konpon Kyo P232). On the other hand, another scripture has a seemingly contradictory statement, such as "(It should be circulated) throughout the body" (refer to the above quote). However, the idea of stopping it in the throat is unclear to me. I feel that allowing it to fill the heart and circulate throughout the body is more effective than performing a Bandha. People who have good circulation in their throat may need Bandhas, but I personally don't have very good circulation in my throat, so that may be influencing my perception.

As stated in the scriptures, drinking it revitalizes you. "Drinking" means letting it go down to the heart. However, even without that, once the Sahasrara chakra has started to open to some extent, I can feel that I am drawing energy from the Sahasrara chakra, and this time, it seems to have become even more powerful and "Amrita-like."

Perhaps, if it becomes even more "Amrita-like" and concentrated in the future, it will be even more effective. However, I will observe that in the future.