注大乘入楞伽經 2.20

2.20

[Mahāmati] asks about the differing shapes of world systems to make clear that they are made by the mind alone. The Avataṃsaka Sūtra states: "Because of differences in seeds, fruits grow differently; because of diverse karmic actions, Buddha-lands vary in many ways." This is explained fully in the chapter "The Formation of the World." "Indra" is another name for Śakra.