Caitanya-caritāmṛta 5.54
cinmaya-jala sei parama kāraṇa yāra eka kaṇā gaṅgā patita-pāvana
[chinmaya-jala sei parama kaarana yaara eka kanaa gangaa patita-paavana]
Blended reading (Sanskrit + English inline)
cinmaya-jala sei parama kāraṇa yāra eka kaṇā gaṅgā patita-pāvana
The water of the Kāraṇa Ocean, which is the original cause, is therefore spiritual. The sacred Ganges, which is but a drop of it, purifies the fallen souls.
My note
Source: vedabase.io