This means, you need to get into a really unconditionally loving place within yourself, and feel that love in your heart. It is NATURAL for miracles to occur when you do so, like they are practically effortless.
But when the Course talks about love it doesn't just mean the degree of love you can experience as a separate ego self. It means GOD, all of God, as all the love there is. The power of love. Which is beyond all other powers. That love inspires miracles. And those miracles MUST entail sharing and extending love to another.
It's not something that occurs because you stand on the opposite side of the street to someone and think fondly of them, or decide to lift your sins off their shoulders in an act of forgiveness.
Miracles EXPRESS love, which is a power, which is directed by intelligent Spirit, and which heal every aspect of existence. Miracles are ACTS OF GOD. Mind, body, emotions, finances, relationships, employment, social unrest, war, you name it, all healable.
This all comes naturally when there is love being extended.
A miracle is then like a kind of 'glow' of spiritual power, of unconditional love, which expresses and radiates and shines with such intensity that it has authority over all darkness and illusions and literally corrects all faults and errors, restoring a divine order.
God is involved in miracles because God is love.
This has nothing to do with your mental somersaults or thought-therapy. It only has to do with love.