In fact even the Pure Land--which many mistakenly regard as a through train to Nirvana which can be boarded simply by chanting the Buddha's name--requires all kinds of conditions to be met. It's just like growing watermelons: as well as good seeds, other factors such as ample water, sunshine, air and fertilizer are all needed.
即使被視為念佛號即可如乘直達車到站的淨土，也需要萬法俱足，如種西瓜，好種籽之外，水份、陽光、空氣、養分各種因緣充足。