Manifestation (noun)

1. An event, action, or object that clearly shows or embodies something, especially a feeling or quality.
2. A visible or tangible form of something abstract or intangible.

Origin:

Late middle english (in the sense "a public declaration"): from latin manifestatio(n-), from manifestare (see manifest).

Examples:

1. Anger was a manifestation of his frustration.
2. His hard work was a manifestation of his dedication to the task.
3. The manifestation of the disease took a long time to be noticed.
4. The manifestation of the spirit was evident in her eyes.
5. The manifestation of love was seen in the way they treated each other.