Practical Mysticism

Surprisingly timeless and under the guise of "Christian Mysticism, " Underhill describes in 1914 what could rightly be called "secular mindfulness" today. Evelyn Underhill doesn't use much Christian terminology, instead preferring to use words that may be considered "new age. " If one can get past the terminology, the "Practical Mysticism" allows anyone to explore the mystical aspects of their own worldview without necessarily betraying their prior deeply-held beliefs.
Practical Mysticism is not a guidebook for mystical practice, though it does provide some tips along the way. What it does give is an introduction and apology for the sufficiently motivated ; those that see (or want to see) the world in a different way.