Is loneliness necessary for [enlightenment]

The Buddha had many disciples, and they practiced ascetic practices in group life.
Then, many of the disciples realized it.
So, you'll be able to understand life even if you're not alone.
But of course, the ascetic practice itself is probably a personal experience, so in that sense, the moment of enlightenment is probably all alone.

Buddha trained away from his family. I went deep into the mountains and did an ascetic act that no one should have found. However, in the end, I concluded that penance only hurt myself and had no meaning. So what did you do after attaining enlightenment? My son, wife, foster mother, and cousins all became disciples and made them into monks. The father, who was left alone, cried and criticized him, and took him out so much that the Buddha reflected on it. This is important.

The Buddha's enlightenment is a blessing. Breaking a relationship is not enlightenment; it is enlightenment about how to live within a relationship.
In fact, Buddha said, “Build a temple not too far from the town, not too close, or in the middle of the town.”

Or Dogen Zenji, who has an image of Miyama Yugoku. They were oppressed by the Hiei Mountain forces in Kyoto, and they stayed deep in the mountains of Noto. However, in the book of sayings and deeds called Shoho Genzou Zuifunki, it is commented, “Actually, being particular about Miyama Yugoku is just obsessing over how good it is (written by Usoga), but since it's the end of the world, I have no choice but to think that it can't be helped...”

It seems that during his training days, Yoshihiro didn't even know who the simple person next to him was from.
Actually, that kind of attitude is probably desirable as an attitude of ascetic practice.
Therefore, I don't often hear the names of our zazen sessions from here.
There was also a lot of stickiness between the participants, so they didn't proceed.
This is because the purpose of sanzen is off.
There are certainly temple associations that are aimed at gatherings, but in a senzen-kai that genuinely determines the state of enlightenment, that is not really necessary. This is because they become aware of people.
In that sense, it is important to be alone during training.
It gets in the way when people look at themselves but they become aware of it.
I think only master teachers and mentors are necessary.
However, during zazen training, it is the person in question who does it, so no one else intervenes there.
Even if you say “loneliness,” it's not loneliness that makes you feel lonely.
People who can truly be alone don't feel alone.
I'm not lonely because I don't live with my thoughts, and I'm at ease with the facts.
A sense of loneliness is probably caused by ideologically considering one's situation as something bad, such as “the world is involved with people, but compared to others, I'm alone.”
You must have been alone even now.
There are different types of silence.
The silence of enlightenment is not lonely, but peaceful, and it is a state of being involved with everything even though it is there. If you really do one person thoroughly, you won't even feel as lonely as you thought. That's because it really makes me feel close to myself.

Yukino-sama

This is Kawaguchi Hidetoshi. This is my humble answer to the question.

Maybe this is a question about “just walk alone like a rhinoceros horn” in the chapter “Rhinoceros Horn” in the Sutanipata “Rhinoceros Horn” chapter...

If that is the case, I hope you can think of it as a reminder of secular fellowship, and not as a social advancement relationship.

Naturally, the presence of comrades, mentors, and ancestors, such as good friends and friends who walk Buddhism together, is a precious presence.

If you deny social advancement, you may fall into a place where you are self-righteous or complacent, so on the contrary, I think you need to be careful about that.

Let's work hard together towards enlightenment.

Kawaguchi Hidetoshi Gassho