सप्तद्वीप-समुद्र-प्रमाणम्: प्लक्षादि-द्वीपवर्णनं, लोकालोक-सीमा, चन्द्र-समुद्र-वृद्धिक्षयः
दधिमण्डोदकश् चापि शाकद्वीपेन संवृतः क्रौञ्चद्वीपस्य विस्ताराद् द्विगुणेन महामुने
dadhimaṇḍodakaś cāpi śākadvīpena saṃvṛtaḥ krauñcadvīpasya vistārād dviguṇena mahāmune
大聖よ、ダディマンダの海もまたシャーカ・ドヴィーパに囲まれている。シャーカ・ドヴィーパの広がりはクラウンチャ・ドヴィーパの二倍である。
Sage Parāśara (in discourse to Maitreya)
It is one of the successive cosmic oceans that surround the dvīpas, expressing an ordered cosmography where creation is arranged in concentric, measurable layers.
He states a proportional rule of increase: Śākadvīpa’s breadth is described as double the extent of Kraunca-dvīpa, illustrating the systematic doubling pattern in the dvīpa scheme.
Even in geographic description, the Purana frames the cosmos as an intelligible, law-governed order—ultimately upheld by Vishnu as the sovereign ground of reality and cosmic stability.