In the Golden Age of Theosophy, we were very fortunate to have a generous amount of quality literature being released. Below is a list of texts that can be considered classic guide books for the esoteric spiritual path, sometimes called occultism. I think every one of these texts has some valuable practical insights to offer, as well as having distinctive, original voices. Moreover, Theosophists were the first to publish popular editions of two key texts of Eastern philosophy, the Baghavad Gita and Patanjali’s Yoga Sutras, which have gone on to become quintessential works for spiritual guidance in the West.
Mabel Collins - Light on the Path
Mabel Collins - Through the Gates of Gold
Mabel Collins - Idyll of the White Lotus & Commentary, Subba Row
H. P. Blavatsky – The Voice of the silence
H.P. Blavatsky - Practical Occultism
William Q Judge - Letters that have Helped Me
Godolphin Mitford - The Elixir of Life