Some people have insight and are strong in wisdom but do not have much samādhi. When they sit in meditation they aren't very peaceful. They tend to think a lot, contemplating this and that, until eventually they contemplate happiness and suffering and see the truth of them. Some incline more towards this than samādhi. Whether standing, walking, sitting or lying, enlightenment of the Dhamma can take place. Through seeing, through relinquishing, they attain peace. They attain peace through knowing the truth, through going beyond doubt, because they have seen it for themselves.
Other people have only little wisdom but their samādhi is very strong. They can enter very deep samādhi quickly, but not having much wisdom, they cannot catch their defilements, they don't know them. They can't solve their problems.
But regardless of whichever approach we use, we must do away with wrong thinking, leaving only right view. We must get rid of confusion, leaving only peace.
Either way we end up at the same place. There are these two sides to practice, but these two things, calm and insight, go together. We can't do away with either of them. They must go together.