I am always thinking so hard about the choice for church imagery in Hollis' mind and what it means for her character. I would say for sure that her inner-sanctum when trying to solve a crisis being a church would suggest that she is religious or had a religious upbringing.
The pews are full of figments of hospital patients. They are nondescript figures but their presence paired with her area to process is by the pulpit suggests that she sees herself as a sort of guide to others in this time, especially helping the helpless find a sense of salvation.
At the very front of this church rest the main dilemma Hollis faces, and based on her train of thought and general dialogue, it is easy to assume that this is a mental connection that she comes back to often. Risk with Death. The stained glass window behind this tableau depicts a shining sun, beneath which lies a cloud, beneath which lies a fade from blue to pink, not unlike a sunset. It could just be pretty decoration or could be indicative of the idea that just beyond any clouded idea or concept (taking a risk) there lies the possbility of an end (death).
I feel it could be argued either way that she has a positive or negative relationship with religion based on the imagery alone, but I feel it is safest and likely more accurate to simply say that it is a complicated one. We don't know anything about religion in the Psychonauts universe, which is why this choice of imagery was so fascinating to me. We have no clue what the major religions are like, or how psychic abilities would possibly play into religious affiliation or scrutiny. Not making any assumptions on that front, the symbolism of this being Hollis' safe space in her mind says that she, at the very least, sees a church building as a safe location, likely due to events in her past. She would want to come here to be alone with her thoughts, sort of like processing thoughts and seeking help for herself or others through prayer or self-reflection.
But this idea of Risk = Death being at the very center of the church could also imply a type of religious trauma that caused her to experience a form of death anxiety, barring her from knowing what risks are appropriate and therefore taking none to protect herself and others.
Despite all of this, there is another route that could be taken to interpret this symbolism that could go hand-in-hand with religious affiliation or could go unconnected. For many of those who are not religious, a church is still an important space which often reflects two major changes in a person's life: funerals or weddings.
After the hot streak section of the level, we see that the church windows now have hearts on the windows. Hollis is kneeling on the ground, something that would typically be associated with prayer, but she is gambling on the table....the table which could arguably be like a casket at the front of the church.
Another way to look at the stained glass motifs could indicate the first one being like her focusing on the idea of death as an impending inevitability to be avoided at all costs. The church being covered in hearts later on has a notably different vibe. I am reeeaching here but the first one could be more like a funeral and the later one could be more like a wedding, a time in a church that has a notably more carefree vibe than a lot of church services (although this does vary from church to church and denominationally) and Hollis does mention having a husband in one piece of dialogue relating to the socks and sandals....
Who knows! I am doing some stretching and just bringing up some symbolism. Please feel free to bring up more symbolism that you might find or other interpretations!
