I have had other situations, such as poulterguise-type demon activity (the kind of blatant stuff that cannot be ignored or written off as imagination....the kind of stuff out of movies) that ended when praying in Jesus name with other believers....and at least one situation where I had a premonition pop into my head that saved my life two seconds later...since my abilities for precognition are not developed, and the thought didn't come from myself, it was as if someone else's thought was spoken into my thoughts, I consider that was also devine intervention, but I don't think that is the "miracle" material you're looking for so I'll leave out the details.
Yes, this is a key area to tap in to (knowledge wise) to help build up your faith in a world beyond the objective (material) reality that most accept without question.
A group of friends I associate with who are basically Christians at heart (in terms of their overall belief system and faith in Christ) are interested in occult activity and pursue the knowledge to help bolster their faith. During the pursuit of this knowledge, they collectively opened up a matrix of bizarre synchronicities that have lead them into all sorts of curious areas. Including a famous occult murder within the UK, which spiralled off into background research into Charles T Russell (the JW connection) and resulted in a whole host of truly intriguing lines of investigation.
My one dear friend, whose word I trust, had a very strange incident involving a camera he owns. The camera recorded a photograph by a canal side, detailing an image of my friend (who owns the camera) staring into the canal. Now, the odd thing is, the camera was in his pocket at the time and the angle of the shot appears to be from a person of considerable height (due to the angle). We have no explanation for this at all. This was the first event that expanded out to form our own kind of matrix of linked events.
My other friends have had several curious manifestations in their own home, witnessed by several people at the same time. Again, I do not doubt their word and trust the testimony of all three individuals. Two were active JWs at the time of these particular events. The one chap has died sadly and the other is currently disfellowshiped.
The one incident in particular involved a very odd piece of meshed material (black in colour I believe), which spiraled through the ceiling of the main living area and slowly descended to the floor and then vanished. Three people witnessed this event. They described the object as being very abstract and time appeared to slow as the material moved through the air. Upon investigation, just above the room where the object appeared there were several serious occult books by amongst other authors; Kenneth Grant and Aleister Crowley. The one book in particular is not very nice at all and is a serious sex magic discourse.
Others events include distinct heavy breathing coming from one area of another friends house. An encounter with what can only be described as a UFO one evening (too much to go into here) .... again, dazzling in it's clarity and manifestation. The scale of which cannot be anything than other-worldly technology. A ball of light appeared in front of a friend within a local area of woodlands. Another ball of light passed through the window of another friends house and travelled through the house and then returned back into the garden area before vanishing.
The list could go on ........
To me, there is no doubt in my mind, there are other "intelligent" beings operating on another dimensional plane.
The term miracle could be applied to all of these events that use matter and energy to produce the effect in a remarkable way.