Among the important things, I should advise you is to help the servants of God, particularly the deprived and oppressed people who are downtrodden and defenseless in society. Employ all your power to serve them, as this service is the best provision and the best service to God Almighty and dear Islam. Spend all your energy in rendering services to the oppressed people and supporting them against arrogant powers and tyrants.
(Sahifeh-ye Imam, Vol. 16, P. 224)