The first time that I became able to accept the atonement for myself, undoing a long-standing belief in a "real sin" that I had never been able to completely let go, Jesus said to me "now you will be able to perform miracles".
Notice that the steps I took to get to the atonement and accept it, which was an undoing and correction of fear, guilt, shame, and sin, was not in itself a miracle as such.
By being willing to accept that I was actually innocent in God's eyes because what I thought I had done had not really happened, that meant I was willing to agree that I deserved God's love and that I was, in truth, forgiven.
This meant I was willing and able to now receive love and therefore to love myself. And that means, I was now able to love others. At least a bit. The ability to express love only comes when you have becoming willing to receive it. And you don't have that willingness UNTIL you have accepted that the sin is not real - i.e. accept the atonement.
Miracles are EXPRESSIONS of love. They aren't just you shifting perception or accepting that you are lovable. That process is like opening the door for love to shine through. It is love shining through which has miracle-working power.
Today's lesson 140 says, "only salvation can be said to cure". And from this pertinent lesson:
"Atonement heals with certainty, and cures all sickness. For the mind which understands that sickness can be nothing but a dream is not deceived by forms the dream may take.
Sickness where guilt is absent cannot come, for it is but another form of guilt. Atonement does not heal the sick, for that is not a cure. It takes away the guilt that makes the sickness possible. And that is cure indeed. For sickness now is gone, with nothing left to which it can return."
Accepting the atonement gives you ACCESS to a state of mind which can CURE. A state of mind which can undo all sickness. A state of mind which has the power to perform miracles, which includes the likes of healing those who appear to be sick, helping your brothers and so on.
Just as Jesus did, you can forgive the so-called sins of others. Jesus said many times "your sins are forgiven". He had the power and authority to bestow that forgiveness on others, not just recognizing their sins were not real but also the ability to undo the symptoms and effects of that sin. He could produce a healing miracle on their behalf as an EXPRESSION of love. This is what you are capable of also.
All you need is love.