Kairos is timeline, appropriateness, decorum, symmetry, balance awareness of the rhetorical situation or ''the circumstances that open moments of opportunity''.
Kairos means taking advantage of or even creating a perfect moment to deliver a particular message.
A simile is a figure of speech that is used to say that one thing is "like" or "as" another thing (e.g., is as cool as a cucumber, is as brave as a lion, is crazy like a fox ).