ध्यायन्ती रामचरणौ विवरं प्रविवेश ह ॥ १५ ॥
sītā bhartrā vivāsitā
vivaraṁ praviveśa ha
munau — unto the great sage Vālmīki; nikṣipya — giving in charge; tanayau — the two sons Lava and Kuśa; sītā — mother Sītādevī; bhartrā — by her husband; vivāsitā — banished; dhyāyantī — meditating upon; rāma-caraṇau — the lotus feet of Lord Rāmacandra; vivaram — within the earth; praviveśa — she entered; ha — indeed.
Being forsaken by her husband, Sītādevī entrusted her two sons to the care of Vālmīki Muni. Then, meditating upon the lotus feet of Lord Rāmacandra, she entered into the earth.
It was impossible for Sītādevī to live in separation from Lord Rāmacandra. Therefore, after entrusting her two sons to the care of Vālmīki Muni, she entered into the earth.