What I am writing here is just an opinion and a way to believe on this topic. My intention for this, is to be based as much as it can on the word of God and I think it is. His word is our most reliable source. We also need obviously to have an experience with it. His word mixed with faith, this is what is going to make the difference. However people might have different opinions on the topic and I respect them.
Do we believe in miracles? Which is the condition for a miracle to happen?
We know that one of the most important and fundamental miracles in the life of the beleiver is the one of the new birth. When the love of God touches someone's life and he repents. This is the reason why Jesus came. There is no doubt this is the most important. But what about physical miracles like healing, etc. We know that there are certain denominational movements that believe it and are more focused in this kind of manifestations of God's power. Others instead don't. And some others are a bit in the middle. Some people would quickly pray for someone who is sick and others instead would say "if it is God's will, it will happen." I am not questioning anyone of them, I am just stating what I see. My personal opinion is that there still exist physical miracles and it can still happen today. If God performed these miracles through the believers of the early church time, why not today? Now if you ask me If I can perform a miracle, I would tell you that I wouldn't know, but that doesn't mean that others can not. I am not saying with this statement that all the miracles and prodigies we see or we hear about come from God, because in the last times Jesus said that many would come performing great signs, but that will be just to deceive. (Matthew 24:24)
And if we are not able to do anything extraordinary, we mustn't beat ourselves up for it. Maybe our ministry is different. There are multiple gifts and functions of the Spirit in us. It might be because of a lack of faith, but it is very possible to be as well of the kind of gift and functions we've got. Jesus himself said: "An evil and adulterous generation seeks after a sign, and no sign will be given to it except the sign of the prophet Jonah."Matthew 12:39
Sometimes it is a question of us, but sometimes also of the other people we are dealing with. He said that no sign was going to be given to that generation, except the sign of the prophet Jonah. And that was a comparison with His death on the cross, which is the most important, because it is for salvation. Many people just want to see something, so that they can be able to believe, while He said: "Blessed are those who have not seen and and yet believed." So, for them He has pepared another kind of sign, miracle and another way in which He was going to deal with them. It was because of their condition and their life. I believe that God has prepared the best possible for each one of us, for those who seek His face. There is a verse as well in Acts 17:26,27
"And He has made from one blood every nation of men to dwell on all the face of the earth, and has determined their preappointed times and the boundaries of their dwellings, so that they should seek the Lord, in the hope that they might grope for Him and find Him, though He is not far from each one of us;"
So here we see that He has established the times, the dwellings and everything. And what would be the best for the people dwelling there. That explains why in certain nations and places, certain miracles happen more than in other places. He knows the faith of those people and what exactly they need, so that they can seek Him, as it is been said in the verse.
He knows exactly what kind of ministry and what kind of believers with gifts of the Spirit should be placed there. All of this for His glory. Even though all of us are people, there is still difference in how we've been brought up, what do we know or think about life, etc. So, He knows how to work in each one's life. And sometimes the different ministries shouldn't be dividing each other (unless for something really fundamental and important), but should look at each other as different parts from the same body. Obviously even if sometimes we don't have a certain gift, it still can be manifested in us only by His Grace, but in general we should serve and follow God in the way He wants and according to His will, because His plans for how everthing has to work, are perfect. He knows exactly why He placed us in the place where we are and He knows how to accomplish His will in a perfect way.