The following books are available either free or as paid versions online, and have been invaluable companions in my search for the truth, hidden within myself. Some of these books deal with the psychology of the self and relationships, helping you free your mind of inhibitions, while others deal with the spiritual side of our selves, building upon your open-mindedness.
From a personal subjective perspective, I find that Zen/ Buddhist books and books by Eckhart Tolle are a great starting point. Christian publications, that interpret the Bible, are somewhere in the middle, focusing more on using compassion and encouraging you to find your own path. Hinduism, Upanishads and Vedas take a deeper philosophical approach, but are not easily understood by beginners (can be misinterpreted as nonsensical or having unclear applications, unless you are fully independent-minded and ready for their lessons in the first place). Once Hinduism has been understood, circling back to Sufism, Islam, Christianity, Zen etc. helps, as the teachings of these religions assume greater depth, since your own understanding would have deepened in the process of your growth.
As always, when the student is ready, the teacher appears. The deeper your own spiritual growth, the easier it becomes to understand what you read – not the other way round. Books are mirrors- they can guide you only when you are ready for them, sometimes guiding you only when you read them a second time. May you find peace as you realize your truth.
- The Power of Now- Eckhart Tolle
- Stillness Speaks – Eckhart Tolle
- Tao-te-Ching- Lao Tzu
- Invisible Partners – John Sanford
- He – Robert Johnson
- She- Robert Johnson
- We- Robert Johnson
- The Fisher King – Robert Johnson
- When the Game Is Over, It All Goes Back in the Box – John Ortberg
- Faith and Doubt – John Ortberg
- Soul Keeping- John Ortberg
- All the Ways you Go- John Ortberg
- 121 Zen Koans (a collection of Buddhist parables)
- Poems by Kahlil Gibran (especially those on Children and Marriage)
- Mahabharata – Veda Vyas (suggest the Amar Chitra Katha version / unabridged version)
- Bhagwad Gita – Veda Vyas (a part of the Mahabharata, as a separate book)
- Tales from Upanishads – Amar Chitra Katha publications
- Story of Nachiketa – Amar Chitra Katha publications
- Ramayana – Valmiki (suggest the Amar Chitra Katha version/ unabridged version)
- Lagu Yoga Vasishta – Valmiki (a part of the Ramayana, as a separate book)
- Any good books on soul astrology, such as those by Jan Spiller
The above is not a comprehensive list, and there are many other materials out there that you may find better guide you, based on your background, family upbringing and culture. This is to help you get started on making your own private library that can help you today and in times to come.