Samadhirajasutra 1.13-14

the west sank and the east rose, the north sank and the south rose, the south sank and the north rose, the perimeter sank and the center rose, and the center sank and the perimeter rose. An immeasurable radiance shone in the universe so that whatever darkness there was between the worlds was illuminated by it. The beings who were born there could see each other and they cried, “Ah! Other beings have been born here too!” This occurred even as far down as the great Avīci hell.

Chapter 2

Śālendrarāja

Then the Bhagavān said to the youth Candraprabha, “Young man, I remember that in the past, when I was practicing the conduct of a bodhisattva, I became a cakravartin. I desired this samādhi and I desired to attain quickly the highest, complete enlightenment of perfect buddhahood. For many hundred thousand quintillions¹⁷² of eons on this Vulture Peak Mountain I served, venerated, revered, honored, worshiped, and made offerings to many countless, innumerable tathāgatas, arhats, perfectly enlightened buddhas with the presentation of many hundred thousand quintillions of every kind of jewel, and various kinds of beautiful flowers, incense, perfume, garlands, ointments, powders, parasols, banners, flags, music, musical instruments, flags of victory, and precious monasteries.¹⁷³

“Young man, I heard from those tathāgatas extensively the samādhi, the revealed equality of the nature of all phenomena. I obtained it, asked questions about it, preserved it, recited it to others, promoted it, meditated on it with an unadulterated meditation, promulgated it, and made it widely known to others.

“Young man, the last of all those tathāgatas was the Tathāgata, the arhat, the perfectly enlightened Buddha Śālendrarāja.

Young man, that Tathāgata Śālendrarāja had a saṅgha of a thousand trillion¹⁷⁴ śrāvakas and bodhisattvas. Their lifespans were seven million, six hundred thousand¹⁷⁵ years. I served and made offerings to the Tathāgata, the arhat, the perfectly enlightened Buddha Śālendrarāja for a hundred and eighty thousand million¹⁷⁶ years and I built ten million monasteries made of sandalwood and precious materials. The Tathāgata, the arhat, the perfectly enlightened Buddha Śālendrarāja’s lifespan was seven hundred and sixty thousand million¹⁷⁷ years. I entered homelessness in the presence of the Tathāgata, the arhat, the perfectly enlightened Buddha Śālendrarāja and for a hundred and forty thousand million¹⁷⁸ years I listened to the samādhi, the revealed equality of the nature of all phenomena. I obtained it, asked questions about it, preserved it, recited it to others, promoted it, meditated on it with an unadulterated meditation, promulgated it, and made it widely known to others.”¹⁷⁹

Then the Bhagavān said to the youth Candraprabha, “Young man, if in that way you wish for this samādhi and wish to attain quickly the highest, complete enlightenment of perfect buddhahood, then you too should dedicate yourself to making offerings to, serving, and being an attendant to all tathāgatas as I have done.

“Young man, why is that? The natural result of making offerings to, serving, and being an attendant to all tathāgatas is that it will not be difficult for the bodhisattva mahāsattvas to attain the highest, complete enlightenment of perfect buddhahood, let alone this samādhi, as their natural result.

“Young man, in that way you should never weary of making offerings to, serving, and being an attendant to all tathāgatas.”