The example of baptism
In Jesus day, A person who baptized was a person who took garments, and dyed them (gave them color) by baptizing them in the dye (Ie, their state was changed permanently for whatever color it was to the new color)
A soldier would baptize his swoard by immering it in blood (ceremonial)
In literature, we see creatures baptizing things with their blood, we also see a ship sinking (baptized) or being plunged in water (even scripture says jesus will baptize with his blood on his return)
We then have religious baptism or cleansing of things which belonged in temples (cermonial baptisms)
We then have christian baptism (which actually was practiced by Jews, the first baptism being when Moses took arron and his sons abd baptised or washed them in the jordan river,) A person is literally immersed in water)
We also have John differentiating the baptism in water he was doing, with a baptism of the sprit, which Jesus would do. (Spiritual baptism vs physical baptism)
These alone are not enough. You also have to use scriptural context. Ie, what is the author trying to say
Now while hermit may have a point, we can still use our belief systems and many can still intepret many ways, I do believe it helps alot more than just generalising the interpretation to always mean water, Which is not the case.