You should really dive deep into understanding why you believe in your religion/beliefs that you do. It is only when you truly or want to understand it from a different perspective and dimensions will you know how far you can go to be there with another person (family members, spouse, children, bf/gf, etc.)
Someone can be very deep into their beliefs because through their experiences, they have crossed boundaries, barriers, obstacles, and have witness miracles. Whatever their experiences may be, try to understand it even if you don't practice it. Try to learn about it, even if you disagree with it.
Everyone is their own individual and they decipher different meanings from the same things. Life is a mystery and to some people, it is worth living to discover the mystery of life.