In this paper, we consider the seven major sources of the importance of meaning andpurpose in life proposed on the world, namely; cross-culturally, including achievement, acceptance, relationship, intimacy, religion, self-trancedence, and fairness. Here, the effect of seven major resources on each other is measured using the opinion of experts for adolescent girls in brilliant talent high schools in Qom. In this research measures of influence effect and effect on life is expected. By applying the DEMATEL method its concluded that factors of meaning and purpose in life are ordered. Finally, strategies for brilliant talent high schools are presented.