Prayers offered by a practitioner of the Lotus Sutra will be answered

Therefore, we know that the prayers offered by a practitioner of the Lotus Sutra will be answered just as an echo answers a sound, as a shadow follows a form, as the reflection of the moon appears in clear water, as a mirror collects dewdrops, as a magnet attracts iron, as amber attracts particles of dust, or as a clear mirror reflects the color of an object. 13/5

The Writings of Nichiren Daishonin
On Prayer
Written to Sairen-bo in 1272