Buddha remembrance consists of Buddha recitation which is when the Buddhist laypeople gather together to chant the name of the Buddha.
If they are devoted to the Lotus Sutra as in the lay Buddhist sect of Soka Gakai then they chant "Namu myoho rengé kyo."
If they are of the Jodo Shinshu sect then they chant the Nembutsu ("Namu Amida Butsu").
By chanting the Buddha's name the devotees become mindful of the Buddha.
Thus is Buddha recitation Buddha remembrance.
It is said that Buddhist chanting is the easy path to enlightenment for all sentient beings.
For all sentient beings are destined to become bodhisattvas since such sincere devotion shown by chanting the Buddha's name is a fee definite sign that the Buddha is calling through his devotees.
Small wonder that the Nembutsu is known to the devout Shin Buddhist as the Name-that-calls.
As well, Buddha recitation is called the easy path in contrast to the hard path of Zen mediation.
Thus are there two paths to Enlightenment in Mahayana Buddhism.