What does "one session, one meeting" mean in the tea ceremony?

"One period, one meeting" is roughly like this. Don't care about the previous relationship, don't ask for the future relationship, just a small room, two people, and a bowl of tea. Between the pitches, there is the whole world. For example, if you pass by a woman in a huge crowd, and for a moment, you catch a glimpse of her appearance, you can't help but feel your heart move. The pace slowed down, and in the next moment, she had merged into the sea of ??people and disappeared without a trace. You know that there will never be a chance to meet again, so you move on without leaving any ripples. This is one period at a time. Another example is that you are on a train, sleeping with your neighbor sitting next to each other, and chatting happily all the way. When we got off the bus, we said goodbye to each other, leaving no contact information or asking for names, turned around and went back to busy life, and never contacted each other again. This is also a one-issue period. For another example, the sunset is reflected on the clear snow, and the setting sun shines through the mountains. It is an excellent angle and is very beautiful. The next second, the light and shadow changed and could never be repeated. No photography, no regrets, just focus on the beauty of this moment, one issue at a time. In short, in the face of all encounters, do not have distracting thoughts, just do what should be done, have no regrets, do not worry about gains and losses, focus on the moment in front of you, and let your mind calm down. This is this mentality. Buddhism talks about cause, condition, effect, and retribution. Facing all kinds of encounters, being tempted by thoughts is the cause; worrying about gains and losses is the fate. The congruence of causes and conditions results in retribution. I had a great time chatting with my friends, and I had joyful thoughts, but I always thought, "Will we never see each other again?", "Will there be a chance to meet again in the future?", "I really want to freeze this moment." Wait, that's fate. Just having a cause will not produce any results, but if there is a predestined relationship, karma will accumulate. Although there may not be consequences, this karma has been added to the soul. Therefore, "one period, one meeting" may mean that the "cause" that arises with the encounter will dissipate in the next moment. They come into being suddenly and disappear suddenly. After a bowl of tea, there is no more cause and effect. In other words, we should not create any "condition" for the "cause" that occurs at this moment, and do not leave it the opportunity to generate karma. Many people say that "one period, one meeting" means cherishing fate. In fact, why should we cherish fate? It's just because there will never be a next time. But having the thought of "there will never be a next time" and therefore being extra cautious and lingering is also a kind of "fate" and a break from a peaceful state of mind. Therefore, "one session, one meeting" means not being attached to a certain meeting, but rather, in our short life, every mouthful of water, every breath, every step, and every meeting should be carried out daily, naturally, focused, and Peace of mind. Not because there is no next time, but because every time is unique, and every moment we die and then come back to life.