B four common preliminaries consist of the four meditations on (1) the difficulty to obtain the freedoms and riches, (2) death and impermanence, (3) karma, cause and effect of actions, and (4) samsara, the vicious circle of conditioned existence.

four common preliminaries consist of the four meditations on (1) the difficulty to obtain the freedoms and riches, (2) death and impermanence, (3) karma, cause and effect of actions, and (4) samsara, the vicious circle of conditioned existence.