Just curious, but -- if you are seeking "spiritual advancement, possibly to enlightenment" -- are you in the habit of clinging to your religious and/or spiritual beliefs? Do you hold your beliefs firmly? Do you see them as necessary for your spiritual advancement?
And if so, how do you figure that is helping you?
I hold on to my religious beliefs because:
My Jesus said, man shouldn't live by bread alone but by every word which God spoke
Deuteronomy 8:3
My Jesus said, God's words could sanctify a man and making him holy
John 17:17
My Jesus said, that anyone who looks on the Son and believes in him shall be raised to eternal life
John 6:40
do I hold on my beliefs firmly?
As long as "my beliefs" are in accordance with the Bible, I will hold on to it firmly.
but if I find out that my beliefs are not in conformity with the gospel of Christ, I would drop it like a hot potato.
There is no such thing as spiritual advancement.
I would agree if there is such a thing as spiritual maturity.
Hebrews 6:1
I believe this world is really going to end.
That is why I cling on to my salvation.
Maybe in less than 50 years, the whole thing will hit the fan.
So as they say:
John 10:9 New Matthew Bible (NMB)
I am the door. If anyone enters in by me,
he will be safe, and will go in and out, and find pasture.