The document expresses that no natural or supernatural entity can nourish, protect, or inspire the speaker as much as their immortal mother. Over multiple sentences, it lists things like mountains, oceans, sunlight, etc. that could never care for the speaker as much as their mother. It describes how the mother protected them before birth, endlessly blesses them, admires them more than anything else, and breathes their reflection with every breath - cementing that no one can care for the speaker as much as their immortal mother.