the other kind of practice in Buddhism is the recitation of Buddha name or Mantra
Mantra which is the secret language of the Bodhisattva and Buddha , allow the practitioner to be "connected " with the Buddhas and Bodhisattva
the Most common one is the Om mani padme hum
explanation can be found on many website
recitation of Om mani padme hum is to invoke one towards the practise of Avalokiteshvara Great Compassion spirit in helping all sentient beings
Of course, some manta can be chanted with a mundra...