If your mind is able to settle naturally of its own accord, and if you find you are inspired simply to rest in its pure awareness, then you do not need any method of meditation. However, the vast majority of us find it difficult to arrive at that state straight away. We simply do not know how to awaken it, and our minds are so wild and so distracted that we need a skillful means or method to evoke it.
By “skillful” I mean that you bring together your understanding of the essential nature of your mind, your knowledge of your various, shifting moods, and the insight you have developed through your practice into how to work with yourself, from moment to moment. By bringing these together, you learn the art of applying whatever method is appropriate to any particular situation or problem, to transform that environment of your mind.