Water is the life of all creatures, and it helps their growth. If there be no water, all creatures would die. The cntire universe is pervaded by water.
यत् प्राणः सर्वभूतानां वर्धन्ते येन च प्रजाः। परित्यक्ताश्च नश्यन्ति तेनेदं सर्वमावृतम्॥