The Holy Spirit or the Voice for God, which exists in all of us, does not look at differences in perception. He sees past illusion and looks straight to Truth. The ego says to look at the perceived differences and make something out of them. All that is made of them by ego is more illusion, though, because something can never be made out of nothing.
There is a learning curve with the decision to listen to the Holy Spirit vs the ego; there is learning in general (learning utilizes perception) until one realizes there is actually no decision to make at all. In looking straight through the perceived differences to the Actual Truth, one realizes there was no reason to look at the differences, nor was there any reason to decide between them.
God, in our creation which is an eternal extension of Perfect Beingness, has given us all we could ever want and ever need. The thought, “things could be different” separates from all that is Innately Provided. Thoughts of differences occlude the Voice for God that says, “All are equal in Perfection.” The belief in separation produces a split mind, one that can then only be confused about its Origin. The idea of lack comes up. This idea is painful because it isn’t true.
The ego only ever questions. It has an infinite number of questions about the differences in perception and it is this questioning that leads away from Truth. It forever categorizes between perceived good (that which is desirable) and perceived bad (that which is undesirable) but cannot see the underlying perfection. The Holy Spirit, on the other hand, only ever Answers, with Perfect Love. Lack is an illusion only, based in the belief in separation and constantly changing perception. Perfection is changeless; it is always perfection.