Miracles are everyone's right, but purification is necessary first. Miracles are a kind of exchange. Like all expressions of love, which are always miraculous in the true sense, the exchange reverses the physical laws. They bring more love both to the giver AND the receiver. The use of miracles as spectacles to induce belief is a mis- understanding of their purpose.
Prayer is the medium of miracles.
It is a means of communication of the created with the Creator. Through prayer love is received, and through miracles loves is expressed. Miracles are thoughts. Thoughts can represent the lower or bodily level of experience, or the higher or spiritual level of experience. One makes the physical, and the other creates the spiritual.