Mercury Cougar dream meaning is explained below using 1 different source. Each interpretation is shown with its source.

Interpretation 1 — Ariadne Green

As Mercury is the planet of communication and the cougar the shamanic medicine of a spiritual teacher, the arrival of a Mercury Cougar at your front door in a dream may bnng a sage into your life It may signify a call to become a spiritual teacher or mention a communication from a higher power.
Source: Ariadne's Book of Dream Author: Ariadne Green