Buddhism says: "Everything is illusion."
I have been thinking since I was a child, what is true and false in this world? What is fake?
When he was confused and ignorant, the master would answer his questions and resolve his doubts. Sometimes he would only understand the words half-understood, but he was deeply aware of the mysteries of Buddhism. When he was able to read and read sutras, the master, in addition to the routine chanting of sutras, asked him to ask more questions and let him realize it himself. What he could realize depended on his cultivation level.
Conception: