Unit 3: Buddhism

Buddhism is a Nāstika (heterodox) school founded by Siddhartha Gautama (the Buddha). It provides a "Middle Path" (Madhyamā Pratipad) which avoids the extremes of both self-indulgence (like Cārvāka) and severe asceticism. The core of Buddhist philosophy is interconnected and can be understood through its foundational doctrines.

Buddhism: Four Noble Truths (Cattāri Āriya Saccāni)

The Four Noble Truths are the very foundation of Buddhism, delivered by the Buddha in his first sermon. They are presented as a medical diagnosis: identifying the illness, its cause, the cure, and the prescription.

1. The Truth of Suffering (Dukkha):

   "There is suffering." All life is inherently characterized by Dukkha. This includes obvious suffering like birth, sickness, old age, and death, but also subtle forms like "not getting what one wants," "being separated from what one loves," and the general, pervasive dissatisfaction of a life lived in ignorance.

2. The Truth of the Cause of Suffering (Dukkha-Samudāya):

   "Suffering has a cause." The cause of suffering is Tṛṣṇā (Pali: Taṇhā), which means "thirst," "craving," "desire," or "attachment." We suffer because we crave pleasure, existence, and non-existence. This craving, rooted in ignorance (Avidyā), binds us to the cycle of rebirth (Saṃsāra).

3. The Truth of the Cessation of Suffering (Dukkha-Nirodha):

   "Suffering can cease." The complete cessation of suffering is possible. This state of cessation is called Nirvāṇa (Pali: Nibbāna), which is the "blowing out" of the flames of craving, hatred, and delusion. It is the ultimate goal—liberation from Saṃsāra.

4. The Truth of the Path to the Cessation of Suffering (Dukkha-Nirodha-Gāminī-Paṭipadā):

   "There is a path to the cessation of suffering." This path is the Noble Eightfold Path (Āryāṣṭāṅgamārga).

The Noble Eightfold Path

This is the practical prescription for ending Dukkha. The eight factors are grouped into three categories:

Category	Factor	What it means
Wisdom (Prajñā)	1. Right View (Sammā Diṭṭhi)	Understanding the Four Noble Truths.
	2. Right Intention (Sammā Saṅkappa)	Intention of non-harming, non-ill-will, and renunciation.
Ethical Conduct (Śīla)	3. Right Speech (Sammā Vācā)	Abstaining from lying, divisive speech, and harsh speech.
	4. Right Action (Sammā Kammanta)	Abstaining from killing, stealing, and sexual misconduct.
	5. Right Livelihood (Sammā Ājīva)	Earning a living in a way that does not harm others.
Mental Discipline (Samādhi)	6. Right Effort (Sammā Vāyāma)	Cultivating wholesome states of mind and preventing unwholesome ones.
	7. Right Mindfulness (Sammā Sati)	Being aware of one's body, feelings, mind, and reality.
	8. Right Concentration (Sammā Samādhi)	Developing mental focus, leading to meditative states (Dhyāna).