The wooden box was opened, and the silk brocade wrapped inside was lifted aside, and a round stone the size of a football with a white body and a hint of blue light appeared in front of Tang Xiu's eyes.

Night Pearl, it has been a real scarce treasure throughout the ages, and in later generations, it was Tang Xiu's rich family background, and he had not seen the real Night Pearl twice. I can't help but reach out and stroke the top of the ball, it is cold and smooth to the touch, and I can't see anything unusual about it during the day, but at night, after all the light has dimmed, it is the time when it really shows its unique charm to the outside.

"Among the ten luminous beads that the poor monk could find, only this one best met the requirements of Tang Jushi." Xuanzang put the wooden box on the stone table, reached out and picked up the luminous beads from the box and gently handed them to Tang Xiu's hand, and explained lightly: "The longer you are exposed to the sun during the day, the stronger the light it emits at night. However, if it does not see light for a long time, it is also the weakest one of all the luminous beads at night, so among the ten luminous beads, it has the lowest value. ”

Those nobles who can afford to use luminous beads naturally can't take out luminous beads to see the sun every day, so this kind of luminous beads that are not too bright when they don't see light are not liked by nobles at all, and they are rarely used even for burials.

Therefore, Xuanzang is worried that if this luminous pearl is used as a Buddha bead, if it rains on a cloudy day, its light will inevitably be greatly reduced at night, and it may be easy to explain for a day or two, but what if it encounters a cloudy day for ten days and half a month? Will this affect the effect of the Buddha's light at that time?

Listening to the sound of the strings and knowing the elegant meaning, Tang Xiu stroked the luminous bead in his hand and asked Xuanzang in a negative voice: "Master Xuanzang is worried that this luminous pearl will affect the Buddha's light when it encounters some unexpected weather changes?" ”

"The poor monk does have this concern." It is related to whether the Buddhist relics in the future of the Big Wild Goose Pagoda can be sustained for a long time, and Xuanzang is not hypocritical, and directly admits it frankly.

"We'll talk about this later, but now let's try to see if this glow-in-the-dark bead really works." Tang Xiu shook his head slightly, shook the luminous bead in his hand, and said, "Doesn't Master Xuanzang want to see how this bead emits the legendary Buddha light?" ”

Xuanzang nodded happily, gave a Buddhist salute to Tang Xiu, and said, "I'm tired of Tang Jushi to work hard again." ”

Tang Xiu shook his head again, "Master Xuanzang can't always use Tang as a coolie, since the master of the mirror already knows, now it is necessary to irradiate the light points gathered by the mirror on the luminous beads, Master Xuanzang still finds two trustworthy masters to come and carry this piece of mirror, it doesn't take too long, just shine it for half an hour to see the effect." ”

"It takes half an hour?" Xuanzang's face was stunned for a while, and he folded his hands and saluted Tang Xiu: "It's the poor monk's negligence, Tang Jushi can go to the inner wing room to rest for a while, and the poor monk will come when he goes." ”

After inviting Tang Xiu into the room and personally making a pot of hot tea for him, Xuanzang turned around and went out.

Let the little novice at the door go to attract two close warrior monks, Xuanzang personally taught them how to use the convex lens and let them carry more than 100 catties of mirrors to face the night pearl on the stone table where the sun shines directly. After that, Xuanzang turned back to the wing room and sat down opposite Tang Xiu.

"While there is still leisure now, I will bother Tang Jushi to solve the doubts of the poor monks." Xuanzang clasped his hands together and asked Tang Xiu again: "If it is cloudy and rainy, how can our temple ensure that the Buddha's light is as usual?" ”

Tang Xiu lifted the teapot and poured a cup of hot tea for Xuanzang, and then put the teapot down, and then said: "There is the kind of mirror surface that has a talent, and it can be replaced by a lamp when it is cloudy and rainy, and there is no sun." ”

"But just now, the moment I saw the convex lens, I suddenly thought of a more brilliant idea, maybe Master Xuanzang would like it even more."

Xuanzang's spirit perked up, and he saluted Tang Xiu: "Please advise Tang Jushi!" ”

Tang Xiudao: "In addition to convex lenses, which can concentrate light, it also has a more important property, do you know what it is?" It's imaging! It can magnify a very small light and shadow several times or even dozens of times in an instant, if a convex lens is placed in the appropriate position in the four directions around the luminous bead, they will inevitably be able to extend the image of the luminous bead outward and expand to the extreme, when the four sides of the top of the Big Wild Goose Pagoda are suspended in the air around four huge illusory light balls, will it be more shocking than the simple Buddha light? ”

Convex lens imaging, which is a physical optical phenomenon that has been learned in the early years of the later generations, if used well, is definitely a miracle that is difficult for ordinary people to understand in this era.

Xuanzang couldn't understand what Tang Xiu said, but through Tang Xiu's description of the effect caused by imaging, Xuanzang had already heard some meaning.

One becomes four, and the size becomes larger, all of them emit dazzling light and float in the void, just like the mirror flowers and water moon in the Buddhist language, this is simply a dreamlike scene, how can it happen in reality?

"Tang Jushi, can you really do it?"

Xuanzang is a little unsure, if the scene Tang Xiu said can really be realized, it is indeed a Buddha miracle that is more shocking than the Buddha's light, if it is used alternately with the Buddha's light, the Buddha's light will come out when the sky is clear, and the Buddha's scene will appear when the sky is cloudy, it is absolutely impeccable!

Tang Xiu shook his head and said: "No matter how much I say, it's not as good as Master Xuanzang to take a look, half an hour later, after seeing the Buddha's light, I will demonstrate it to Master Xuanzang, and then the master will know if he can do it." ”

Just talking about it always seems a little empty, so Tang Xiu didn't bother to explain too much, and when he saw the result, everything would be settled, which was more effective than saying anything.

"What are you two little monks doing, basking in the sun here with a piece of broken realm?"

"Did you see Tang Xiu's kid, but the old man heard that he was here, people?"

"Why don't you speak, the old man asked you where Tang Xiu is? Talk?! ”

Not long after Tang Xiu's words fell, a series of roars suddenly came from the silent courtyard, and a rather loud voice shook the tea in the teacup in front of Tang Xiu.

"Coming for me?"

Tang Xiu stood up lightly, his brows furrowed slightly, listening to this voice, it seems that the person who came was not good?

"What about Tang Xiu? Tang Xiu's good grandson, grandpa is coming to you! Hurry up and show Grandpa! ”

"Did you hear that, grandson, I'm your grandfather, come out quickly!"

At this time, another loud shout outside made Tang Xiu's body tilt suddenly, and Hao Xuan did not fall to the ground.

Father... Father... Grandfather? Your sister, your master!

A nameless anger rushed from Tang Xiu's heel to Tianling Gai, and several hairs in front of Tang Xiu's forehead stood up, first he was tied up and forced to kill someone, and now he was so clearly approached to the door and scolded, your sister, the tiger is not powerful, is it really easy to bully Lao Tzu?!

"Don ......"

After hearing the sound outside, Xuanzang had already identified who was coming, and was about to open his mouth to talk to Tang Xiu, but as soon as the first word came out, he saw Tang Xiu rush out of the door with an arrow step, and then heard Tang Xiu's angry shout: "Old Zamao, it turns out that you are squirting feces all over your mouth here, and eating grandpa's punch!" ”

"It's over!"

Hearing Tang Xiu's words, Xuanzang's heart twitched, and he recited a sentence of Amitabha Buddha after the two queens, and began to mourn in silence for Tang Xiu's next encounter.

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