One who is a true Pure Land practitioner should follow this advice given by Master Guang Qin. He gave us the following advice:
"Don't think too much; just work, eat and recite the name of the Buddha! Live only for today and let tomorrow be tomorrow. Let go of all worries and anxieties. Such is an indication of firm resolution, and such is practice."
Indeed, what Master Guang Qin had said. As a Pure Land practitioner, the doubt to this Pure Land Dharma Door, is a hindrance to be successful to be reborn in Western Pure Land. A real practitioner should have firm and resolute in faith, vow and practice. This means that continuous recitation with strong faith and vow will ensure that we will be reborn in Amitabha Buddha's Pure Land.