The Abhidhamma describes death and rebirth as instantaneous mental events: the dying consciousness ceases, then immediately a new rebirth consciousness arises in the next life.
According to the Abhidhamma, death is not a gradual fading but a precise moment when the dying consciousness (cuticitta) ceases. This final moment of life is said to be characterized by the weakening of the five physical faculties—the sense organs that have supported consciousness throughout life. As these faculties fail, the mind naturally turns toward its habitual objects, typically whatever mental impressions dominated the person's life.
The Abhidhamma describes this process in technical detail in texts like the Vibhanga and the Dhammasangani. The dying consciousness performs a final cognitive act before cessation. This is crucial: the Abhidhamma does not view consciousness as continuously flowing into death. Instead, it maintains that consciousness operates in discrete moments, each arising and passing away in rapid succession. Death simply marks the end of one stream of moments.
A significant question arises: what happens in the interval between the dying consciousness ceasing and the rebirth consciousness arising? The Abhidhamma is cautious here. The Pali texts do not elaborate extensively on this gap, though later philosophical traditions developed different interpretations.
The orthodox Theravada Abhidhamma position, as expressed in commentarial literature, suggests the gap is virtually instantaneous—no temporal space exists where consciousness is absent. The rebirth consciousness arises immediately as the dying consciousness passes away, with no intermediate state. However, it's important to note that this represents the Theravada perspective. The Mahayana Abhidharma traditions, particularly in Tibet, developed the concept of the bardo or intermediate state, which explicitly posits a consciousness existing between death and rebirth. This represents a significant doctrinal divergence.
The Abhidhamma's central claim is that rebirth consciousness (patisandhicitta) arises according to the force of karma accumulated during the previous life. This consciousness is not a "soul" transmigrating, but rather a new stream of moments arising as the natural causal result of the ending stream. The Abhidhamma uses the analogy of a flame passing from one candle to another—there is continuity of pattern and causation, but no substance transfers.
The rebirth consciousness carries with it the karmic "imprint" or predisposition (vasana) from the previous life. The specific nature of this consciousness—what realm it arises in, what bodily form it inhabits—is determined entirely by the karma that preceded death. There is no mechanism of choice, no intermediary judge. Rebirth is automatic consequence.
How does karma bridge the death gap? The Abhidhamma explains this through the concept of kamma-nimitta (karmic sign) or gati-nimitta (destination sign). As death approaches, the dying person typically perceives a mental image or sign related to their accumulated karma or their destination realm. This perception influences the final moments of consciousness. A person with virtuous karma might perceive light or pleasant scenes; one with nonvirtuous karma might perceive darkness or distressing images.
This karmic sign serves as the object toward which the dying consciousness orients. The rebirth consciousness then arises specifically because of this karmic conditioning. The Abhidhamma emphasizes that this is not mystical but thoroughly causal: each moment of consciousness arises dependent on preceding conditions, and the dying moments are no exception. The mechanics operate through natural law, not divine intervention.
It's essential to recognize that while the Theravada Abhidhamma presents this position with confidence, the Buddhist traditions vary. The Sanskrit Abhidharma schools of early Mahayana offered different analyses. Some accepted the Theravada model; others proposed that consciousness could continue between lives in a subtle form. Tibetan Buddhist philosophy, drawing on Indian Mahayana sources, explicitly teaches a forty-nine-day intermediate state with a consciousness that can perceive various apparitions.
The Pali Canon itself, on which Theravada relies, contains fewer explicit details about the death-rebirth process than the Abhidhamma systematizes. The Abhidhamma represents a philosophical elaboration on these foundational teachings, one that reflects the systematic, psychological orientation of that tradition. When consulting sources, distinguish between what the Pali Suttas explicitly teach and what the Abhidhamma extrapolates from them.