These mantras are generally for a longer period and sung in teams. Kirtan allows for a communal expression of devotion which is an uplifting practice that may lead to states of joy and bliss. Popular kirtan mantras include the Hare Krishna mantra. Repeat a mantra, for example “Om Namah Shivaya,” https://gregorytrpnk.eedblog.com/39977720/the-definitive-guide-to-yantra