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nirvana - (in Buddhism) a transcendent state in which there is neither suffering, desire, nor sense of self, and the subject is released from the effects of karma and the cycle of death and rebirth; it represents the final goal of Buddhism

As the Buddha meditated under the banyan tree, a serene glow seemed to appear around him when he finally achieved nirvana.
stride - Progress or advancement: A significant step forward in development or improvement; or a long step or pace: A way of walking with long, decisive steps.

The Supreme Court's decision was a signfication stride in the movement towards desegretation.
wonder - To feel curiosity or doubt about something; to question or inquire about something, often with a sense of awe or amazement.

When she saw the magician perform his final trick with the glass ball, she couldn't stop wondering how he did the trick.