We are all blind mice describing an elephant, it is all relative. If multiple labs independently measure, say gravity to be 9.8 m/s^2 or multiple cultures all agree everyone's well-being is better with honesty, justice, kindness - general observable principles of natural laws are better trusted when many cultures agree.
The Quran, the Bible, the Rig Veda, the Dhammapada - all blind mice. I only take as doctrine what all agree on, those simple general principles of kindness, working together, honesty, and believe confining oneself to any single group limits perception.
SBNA for me abd so many others. Spiritual, yes. Affiliated-no.