I mean no malice when I say this: more and more, it seems to me that part of the draw of the 'spiritual, not religious' _religion_ is that one can believe whatever one wants, from day to day, without being held accountable to _any_ higher authority whatsoever. "We _cannot_ know the truth" is held with as much certainty as "but we know it's _not Christianity_!" Railing against 'absolute, exclusive truth claims,' and yet operating on one just the same. I cannot think of any more eternally dangerous advice than "look within." A ship tossed in a stormy sea needs an _anchor_ that is well-weighted, _outside_ of itself, and on solid ground. We have an anchor for the soul, a _forerunner_, already well-fixed in the presence of God, in Christ Jesus ([Hebrews 2](esv.org/Heb+2) ). I _have_ looked within, and it looked strangely similar to Lazarus' tomb before the life-granting call of Christ: dark, diseased, full of death and decay. Some ideas have _eternal_ consequences. Don't navigate the storm by following a _wandering planet_ but, instead, fix your eye on the unmoving, and immovable, North Star. TL;DR: Don't "look within," look to [Him](esv.org/John+1).