As an anecdote/aside, I have a long time friend who - when we met - wasn't religious or spiritual in any outwardly noticeable way. She had a handful of interests, enjoyed discussing many life topics, and had a well-paying sales job with a good company. As the years went on, she had three kids from unhealthy romantic relationships, became more and more spiritual and gave up her job to start a part-time, new age micro business. Not only did her income go way, way down to the point that she constantly struggles to pay her bills, but everything she says is spiritually-motivated. In a real sense, she stopped being a person and became a mouth-piece of her spiritual beliefs. I recently realized she's no different than a monk or a nun (whose beliefs are weaved into everything they say), only she still lives in the real world.
As a result of all this, our deep and diverse weekly discussions became less and less frequent (to the point of being almost non-existent), not to mention extremely unidimensional. She might as well have gone to live in a convent because I lost my friend all the same. Am I happy she's happy doing what she loves? Sure, but I also mourn the almost complete loss of the person I knew.