Tirukkural - On Virtue - In Praise Of - Kural 18

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If the s fail there will be neither festivals Nor rituals, for the Gods themselves..

If the heavens dry up, the poojas and offerings to God will not also be coming up in their accustomed plenty.

This is a humorously exaggerated way, perhaps, of picturising the difficult situation arising out of drought, even in respect of the devotions to the great Gods themselves.