佛說觀佛三昧海經 10.41

10.41

"Furthermore, Ānanda! For example, when the kalpa is about to end, two suns appear together, and the mountains, forests, trees, rivers, and ponds dry up; when three suns appear, multi-colored fires blaze; when four suns appear, the great ocean diminishes, leaving only one part in three; when five suns appear, the great ocean is completely exhausted; when six suns appear, Mount Sumeru collapses; when seven suns appear, the great earth blazes with fire, reaching up to the form realm, and only the Vajra Mountain cannot be broken, remaining in its primordial state. The buddhānusmṛti-samādhi is also like this: one who practices this concentration abides within the ocean of the true reality of the past Buddhas."