Previously, it took a considerable amount of time, and there were days when it didn't happen at all. Even a few months ago, it was quite common for it to take 2 hours to reach Sahasrara.

However, recently, it has been happening quite quickly, although I haven't been measuring the time precisely. After a certain period of stillness, energy to Sahasrara seems to rise quickly, probably within 10 minutes or so. Whether this is considered fast or slow is subjective, but I feel like it has become relatively faster.

Changes that occur when energy reaches Sahasrara include relaxation and a sense of clarity in perceiving things.

In reality, in the previous state, it was probably a state where Sattva, one of the three Gunas (Sattva, Rajas, and Tamas) in yoga and Ayurveda, was dominant. Now, it feels like the three are balanced. However, this is just a feeling, and I don't have any concrete evidence.

The three Gunas are: Sattva, a pure quality; Rajas, an active quality; and Tamas, an inert quality. Yoga and Ayurveda often emphasize reducing Tamas and increasing Sattva. When Sattva is dominant, the surroundings may appear to glow.

However, when the three Gunas are balanced, it feels like there is nothing between oneself and the surroundings, like a sense of transparency, and things in the surroundings appear "as they are."

For example, when Tamas is dominant, the surroundings may appear as a dark and heavy world, like a hell or a realm of hungry ghosts. When Rajas is dominant, the world may appear as a vibrant and energetic place. When Sattva is dominant, one may have the illusion that everyone is good and enlightened.

Regardless of which Guna is dominant, there is always a cognitive filter that obscures the true nature of things.

When the aura fills Sahasrara, the qualities of these three Gunas become balanced, and the filter that was between one's perception and reality seems to disappear.

When viewing things in this state, one can see "as they are," and because this is based on "stillness," one can simply "observe" without being troubled by the surroundings.