Conversation so far:
When did Grigori Rasputin start his religious conversion?
Grigori Rasputin's visit to the St. Nicholas Monastery at Verkhoturye in 1897 was transformative.
Why was Grigori Rasputin's visit to the St. Nicholas Monastery at Verkhoturye in 1897 transformative?
Grigori Rasputin may have spent several months at Verkhoturye, and it was perhaps here that he learned to read and write.

Question: What else did he learn there?
Self-contained rewrite: What else did Grigori Rasputin learn at the St. Nicholas Monastery at Verkhoturye in 1897 besides perhaps learning to read and write here?