SR (Selective Retention) is a kind of Memory of past experiences, which were closer to your interests, values and beliefs. SR is an inseparable part of ordinary human being. Everything, every one, every relation, deserts you but still SR remains with you in the life after life unless you completely destroy SR for Moksha (Final Salvation from the birth and death).
SR has been an interesting and mandatory subject/object of Contemplation and Analytical Meditation, which is practiced by every Bodhisattva / Mumukshu (Aspirant of Moksha) before attainment of Buddhahood/Moksha.
Yogi Anand - Yoga Mindfulness Master 