Nirvana is the ultimate goal of the Buddhist path. It is a state of perfect peace, happiness, and liberation from suffering.

Samsara is the opposite of Nirvana. It is the cycle of birth, death, and rebirth that is characterized by suffering.

The three marks of existence are Dukkha (suffering), Anatta (non-self), and Anicca (impermanence).

The cause of suffering is attachment, ignorance, and desire. These three factors lead to the cycle of birth, death, and rebirth.

The path to Nirvana is the Eightfold Path, the Four Noble Truths, and the Three Jewels.

The first step on the Eightfold Path is Right View, which is the understanding of the Four Noble Truths.

The final step on the Eightfold Path is Right Liberation, which is the liberation from suffering.

The Four Noble Truths are Dukkha (suffering), Samudaya (the cause of suffering), Nirodha (the cessation of suffering), and Magga (the path to the cessation of suffering).

The first Noble Truth is Dukkha, which is the truth of suffering.

The second Noble Truth is Samudaya, which is the truth of the cause of suffering.

The third Noble Truth is Nirodha, which is the truth of the cessation of suffering.

The fourth Noble Truth is Magga, which is the truth of the path to the cessation of suffering.

The Three Jewels are Buddha, Dharma, and Sangha.

Buddha is the founder of Buddhism, the enlightened one, and the teacher of the Dharma.

Dharma is the teachings of Buddha, the path to Nirvana, and the truth of reality.

Sangha is the community of Buddhist monks and nuns, the community of Buddhist lay people, and the community of all beings.