All sadhanas (spiritual practices) are methods to decrease the thoughts and to increase peace and thus slowly man can become God. Not only does one enjoy peace oneself but can give peace to others as well.
The goal of sadhana is to eliminate the mind, which consists of thoughts and desires. The Self is beyond all these. To know the Self, the mind should be eradicated.
Everything will be known spontaneously if you do sadhana. Understand who you are. Know the Self. Then you can lead a life without attachment to anything. Such a state of mind will come if you do sadhana sincerely.
We are like pure rainwater that has become impure by falling in the gutter. The water in the gutter needs to be cleaned by connecting it to a river, and this is what sadhana does.
In the deep sea there are no waves. It is on the shore that the waves strongly break because there is little depth. Peace can be experienced when the mind becomes expansive and deep through sadhana.
Mata Amritanandamayi Devi