In a general sense, yes – in the terms of being calm and resilient, etc. But, there’s no mention of Buddhism or any other religion. This sub focuses less on awakening spirituality (like The Revelation of Spirit) and has more of a “practice being calm and focused” feel, as well as the enhancements to physicality, the mind, combat skill, etc.
The virtue scripting can be considered “spiritual” in a way, because it will help you bring out extremely positive change in your life and consider the “bigger picture,” and it will help you mine wisdom out of everything you do, particularly your chosen craft.