prayer consists of attention. It is the orientation of all the attention of which the soul is capable towards God. The quality of the attention counts for much in the quality of the prayer. Warmth of heart cannot make up for it.
Simone WeilAll the natural movements of the soul are controlled by laws analogous to those of physical gravity. Grace is the only exception. Grace fills empty spaces, but it can only enter where there is a void to receive it, and it is grace itself which makes this void. The imagination is continually at work filling up all the fissures through which grace might pass.
Simone Weil