Books authored by a Spiritual Teacher

"Possession of material riches, without inner peace, is like dying of thirst while bathing in a lake. If material poverty is to be avoided, spiritual poverty is to abhorred! It is spiritual poverty, not material lack, that lies at the core of all human suffering." The Essence of Self-Realization by Paramhansa Yogananda
Paramhansa Yogananda is one of the most significant Spiritual teachers of the 20th century. His classic "Autobiography of a Yogi" was first published in 1946.