"Aptavani 4" is the fourth in a series of spiritual Audio books titled "Aptavani". In this series, Gnani Purush (embodiment of Self knowledge) Dada Bhagwan addresses age-old unanswered questions of spiritual seekers. Dadashri offers in-depth answers to questions such as: "What is the definition of self awareness, and what are the signs of lack of awareness?", "What is spirituality?", "What are the benefits of spirituality and practice?", "How can I experience a spiritual awakening, and what are the signs of spiritual awakening?", "How may I attain spiritual enlightenment and lead a spiritual life?" Dadashri also provides spiritual explanations regarding: "What is the meaning of ignorance?", "Who am I ?", and "How can I experience the spiritual power of my pure Soul?" For those seeking to learn how to become more spiritual, Dadashri explains that the knowledge of Self is the beginning of true spirituality. Upon attaining Self knowledge, one's spiritual development begins, which eventually leads to ultimate liberation, or moksha.