Simplify the following text for a Grade 8 native English-speaking person.
Original: Her mother relied on the counsel of Grigori Rasputin , a Russian peasant and wandering starets or `` holy man , '' and credited his prayers with saving the ailing Tsarevich on numerous occasions .
Simplified: Her mother trusted Grigori Rasputin , a Russian peasant and wandering `` holy man '' .