Complex sentence: Also, there's a Tibetan Buddhist tradition of asking the Buddhas and bodhisattvas to dedicate your accumulated merits to all sentient beings after completing any Buddhist practice including the practice of the prayer wheel.
Split into simpler sentences: Also, there's a Tibetan Buddhist tradition of asking the Buddhas and bodhisattvas to dedicate any accumulated merits that you may have gathered during your practice to all sentient beings. This is standard with Tibetans completing any Buddhist practice including the practice of the prayer wheel.