My understanding is that planes, trains, cars etc can all be viewed as forms of transportation. IOW - we are moving, or being transported from, one place to another. Looking at the surrounding water, which represents the unconscious, I would say that this plane represents a personal journey for you. A spiritual journey, as oposed to a physical one. This, I believes, represents something that is aboutt otake pplace in your real time life. This journey concerns you - the whitcaps represent challenges connected w ith your journey. The other woman on the plane - the pne that wants to get off - is that part of you that is anxious, or perhaps even afraid, of this journey that you are about to undertake. The stewardess, your Higher Self, is reassuring you that "all will be well". :)