Mantras

Mantra recitation is a practice performed by some who follow the Mahayana path, and especially, but not exclusively, in Tibetan/Himalayan Buddhism. The meaning of the Sanskrit word “mantra” is sometimes translated as: spell; magic formula; or more accurately reflecting the purpose of a mantra: mind trainer, or mind protector.
Mantras can be very short, consisting of just a few syllables, or more than a thousand such as with the Shurangama mantra. Some may be translated, whilst others have no direct meaning, and it is the very sound of the mantra that carries its efficacy. Some mantras have been translated into English, but many great Masters discourage us from focusing on such translations and instead to concentrate on the transcendental vibrations of the sound.
A few mantras
Sakyamuni Buddha
Oṃ Muni Muni Mahāmuni Śākyamunaye Svāhā
Amitabha Buddha
Om Ami Dewa Hrih (or Om Ami Deva Hri)
In Chinese Pure Land Buddhism: Namo Amito Fo
Medicine Buddha
Tayata Om Bekandze Bekandze Maha Bekandze Radza Samudgate Soha
Om Mani Padme Hum
Guanyin Bodhisattva
Manjushri Bodhisattva
Oṃ A Ra Pa Ca Na Dhīḥ
Green Tara
Padmasambhava
Om Tare Tuttare Ture Soha
Oṃ Āḥ Hūṃ Vajra Guru Padma Siddhi Hūṃ / Om ah hung benza guru pema siddhi hung