The disciple of the Noble Ones, who has a hate-free mind, a malice-free mind, an undefiled mind, and a purified mind, is one by whom four assurances are found here and now.
Suppose there is a hereafter and there is a fruit, result, of deeds done well or ill. Then it is possible that at the dissolution of the body after death, I shall arise in the heavenly world, which is possessed of the state of bliss. This is the first assurance.
Suppose there is no hereafter and there is no fruit, no result, of deeds done well or ill. Yet in this world, here and now, I keep myself free from hatred, free from malice, safe and sound, and happy. This is the second assurance.
Suppose evil befalls an evil-doer. I, however, think of doing evil to no one. Then, how can ill results affect me, who do no evil deed? This is the third assurance.
Suppose evil does not befall an evil-doer. Then I see myself purified in any case. This is the fourth assurance.
The disciple of the Noble Ones, who has such a hate-free mind, such a malice-free mind, such an undefiled mind, and such a purified mind, is one by whom, here and now, these four assurances are found.
―Buddha Shakyamuni, Kalama Sutra