However, it's possible to argue that Christianity and Islam both have their roots in Judaism and so all three can be seen to share a common source and world view whence their tradition of regular prayer may have come. But if we look outside the Judaeo-Christian-Muslim tradition, we find the custom of prayer at morning and evening also exists in Hinduism and Buddhism. One Hindu source states: 'Daily the student of sacred lore should stand at dawn and recite the Savitri until he sees the rising sun'.

Here Buddhists worship together, using references to light:

Great Kanzeon views all the world in Truth;
He is a light pure ... spotless like the sun,
With wisdom does he darkness all dispel,
Subverting all effects of wind and fire;
His all-illuming light fills all the world ...