Definitions of manifestation:

• noun:   a manifest indication of the existence or presence or nature of some person or thing

  Example: "A manifestation of disease"

• noun:   a clear appearance

  Example: "A manifestation of great emotion"

• noun:   a public display of group feelings (usually of a political nature)
• noun:   expression without words
• noun:   an appearance in bodily form (as of a disembodied spirit)