“The First Coming of Christ is just another name for the creation, because Christ is the Son of God. The Second Coming of Christ means nothing more than the end of the ego’s rule over part of the minds of men, and the healing of the mind. I was created like you in the First, and I am reminding you that I have called you to join with me in the Second.” (ACIM, COA ed., T-4.VI.14:1-3)
Here Jesus is explaining the new reality, the fact that when he came 2,000 years ago, he was embodying the Christ, the Awakened Son of God. Now, he says the Second Coming is a healing of OUR minds, that we too will recognize that we too are Christ, Sons and Daughters of God. This, being a healing of our mind, is the end of the ego’s rule.
The only thing that needs to happen is that we rest in God’s love, let the barriers to love’s rule dissipate, and wait, patiently, for our Awakening—by God Himself. This means, obviously, that we take measured paces to relinquish the ego. We don’t do anything to reinforce it; we stay away from egoic notions, for they will only derail us.
Does Jesus come in the Second Coming? Is there a physical manifestation? He never says, in any of his channeled courses (A Course in Miracles, A Course of Love, The Way of Mastery Platform). It wouldn’t be wise for us to speculate about something that has been so divisive in our religions.
If he comes in physical manifestation, we will see great glories on earth. If not, perhaps he intends for us to manifest those great glories, in a new world that we will create. This latter point is made very plain in A Course of Love.