Dukkha, often translated as suffering or unsatisfactoriness, is the fundamental concept in Buddhism that refers to the inherent dissatisfaction and suffering present in all conditioned existence.

Buddhism identifies three root causes of suffering: ignorance (avidya), attachment (tanha), and aversion (dosa). Ignorance leads to attachment and aversion, which in turn perpetuate the cycle of suffering.

Nirvana is the ultimate goal of Buddhist practice, a state of liberation from suffering, the cycle of rebirth, and the defilements of the mind.

Nirvana is the cessation of Samsara, the cycle of birth, death, and rebirth. It is the ultimate liberation from the suffering inherent in Samsara.

The Mahayana school of Buddhism emphasizes the concept of Emptiness (Shunyata), which asserts that all phenomena are devoid of inherent existence and are interconnected.

Meditation is considered an essential practice in Buddhism for calming the mind, developing insight, and cultivating the qualities necessary for achieving Nirvana. However, it is not the sole path to Nirvana, as other factors such as ethical conduct and wisdom are also important.

The Tripitaka, consisting of the Vinaya Pitaka, Sutta Pitaka, and Abhidhamma Pitaka, is the foundational scripture for the Theravada school of Buddhism, containing the teachings of the Buddha and his disciples.

The Four Noble Truths provide a comprehensive framework for understanding the nature of suffering, its causes, its cessation, and the path leading to its cessation, ultimately guiding practitioners towards the realization of Nirvana.

Anatta refers to the Buddhist teaching that there is no permanent, unchanging self or soul. Instead, the self is seen as a collection of constantly changing mental and physical phenomena.

The Mahayana school of Buddhism emphasizes the concept of Bodhisattvas, compassionate beings who strive to attain Buddhahood not only for their own liberation but also for the benefit of all sentient beings.

Wisdom (prajna) is a crucial aspect of the Buddhist path, as it helps practitioners understand the true nature of reality, overcome ignorance, cultivate compassion, and ultimately realize Nirvana.

Vajrayana, also known as Tantric Buddhism, emphasizes the use of Tantric rituals, visualizations, and esoteric practices as a means to accelerate spiritual development and attain enlightenment.

Dependent Origination is a fundamental Buddhist teaching that explains how all phenomena arise and exist in dependence on other phenomena, forming a web of interconnectedness.

Zen Buddhism, a branch of Mahayana Buddhism, emphasizes the practice of meditation and the attainment of sudden enlightenment (satori) through direct insight into the nature of reality.

Compassion (karuna) is a central virtue in Buddhism, as it cultivates empathy, motivates practitioners to work for the welfare of others, and leads to a deep understanding of the interconnectedness of all life.