A notable aspect of the karma theory in Buddhism is merit transfer.
The Buddhist tradition regards ignorance , a fundamental ignorance, misunderstanding or mis-perception of the nature of reality, as one of the basic causes of dukkha and samsara.
The modern Theravada school does not treat the Mahāyāna sūtras as authoritative or authentic teachings of the Buddha.
The Buddha said Subhuti If you look at the Tathagata in 32 phases, the wheel of the holy king is the Tathagata.
He didn't, so there is a lot of scripture, don't misunderstand.
The vast majority of Buddhist lay people have historically pursued Buddhist rituals and practices motivated by rebirth into the Deva realm.
Like him who has no wisdom, we can realize wisdom.
History of Indian Philosophy, Volume 1.