What do you mean by a miracle? What people call a miracle is only something done in a striking way by a process unknown to them which their minds cannot follow.
I have explained that there is no such thing as a miracle. If a higher consciousness opens a higher power in him, the sadhak has to use it as part of the new consciousness but in the right way, without egoism, selfishness, vanity or pride.
Ref
Narendra Thakker
🌷 Sri Aurobindo (Letters on Yoga -1, page-580)