From The Letters of Rennyo Shonin (Gobunsho) Fascicle 5, Letter 9
The essential point of the settled mind in our tradition lies simply in the meaning of the six-character Name, “Na-mo-a-mi-da-butsu” (literally, paying homage to Amida Buddha).
This means that when we pay homage － “namo” － to Amida Buddha, we are immediately saved by the Buddha. So the two-character word, “na-mo,” means to take refuge.
“To take refuge” means that we, sentient beings, setting aside various practices, entrust ourselves unwaveringly to Amida Buddha for our emancipation in the afterlife Accordingly, Amida Tathagata, knowing this fully, saves all of us, without exception.
Thereupon, since Amida Buddha saves the sentient beings who entrust themselves － “namo” － to the Buddha, the six-character Name, “Na-mo-a-mi-da-butsu,” manifests how we, sentient beings, are all saved without discrimination.
For this reason, when we speak of attaining the entrusting heart of Other Power, we find that it is exactly what the six-character Name, “Na-mo-a-mi-da-butsu,” means. We should, therefore, realize that all the sacred scriptures indeed are solely meant to make us entrust ourselves to the six-character Name, “Na-mo-a-mi-da-butsu.”
Humbly and respectfully.