“I want to answer one question tonight, which has been in the minds of a great many Students. We use various kinds of terminology, but always simple in its explanation so it cannot be misunderstood.
When We say, any of the Ascended Masters say to you, “Stand in and to your ‘Mighty I AM Presence'”, it means just that.
When you stand to your “Mighty I AM Presence”, it means that you are undivided in Its Power. When you stand at attention, your attention is upon a definite objective!
When you want to have anything manifest in your experience, it means that you must hold a definite focus of your attention upon the Call to your “Presence” – unyielding.
In not allowing anything to intrude or disturb that Call, it will act quickly.
Always ask your “Presence”, when you have made an earnest Call, to stand Guard over it and see that nothing disturbs your feeling, until that is made manifest to you.
The “Presence” will do it!
Remember, Beloved Ones, your Higher Mental Body is one of the most Magnificent Activities of all mankind, because It is your Discriminating, Selective Intelligence which knows every requirement.
It wants you to have all good so much; but if your feeling is requalifying all the Energy which you call forth, is your “Presence”, is your Higher Mental Body to blame?
If you will not govern your attention, or you allow the feeling to requalify the Energy you have called forth, then your human self goes on doing the same old thing all the time, instead of producing the results you want.”
Mary (Mother Of Jesus)
The Mark Of God: Understanding Your "I AM Presence" 