We do not require 

diverse chants and mantras.

Just one.

With an abundance of Buddhist chants and mantras, it becomes tempting to learn several so as to select the most appropriate one for any situation we encounter. But for those of us who are still unaccomplished practitioners, such an approach poses the same dilemma we encounter while trying to simultaneously practice diverse schools: unfocused familiarity instead of focused proficiency. And to further complicate things, when under pressure we might not be sure which mantra or chant to use. Wouldn’t it be much easier if we had one that was ideal for all situations? Fortunately for us, we do. When sick, chant “Amituofo.” When concerned about others, chant “Amituofo.” When unsure what to do, feeling irritated, worried or scared, when dying—“Amituofo.” Having chanted “Amituofo” for all our needs, we will have strengthened our surest method for ending all afflictions and suffering.