<Ref>The Mother. (1972). Questions and Answers 1957-1958. In Collected works of the Mother(pp. 381-383). Pondicherry: Sri Aurobindo Ashram.</ref>
==Concentration on a
'''''Sweet Mother, when we concentrate on one of your photos—there are many photos, each one with a different expression—does it make a difference for us, the one on which we concentrate?'''''