By seeing (being aware) through one's own ego/personality/selfhood that all personality based (ego-centered) beliefs are, at their root, insubstantial. One may see this by living meditation: daily confronting, penetrating, understanding and resolving any attachment to and conflict with the subject matter (thought/emotion/action) that one experiences.

Thus by turning In and stilling (centering) the mind, paying constant attention to what is actually going on at this very moment (seeing it as it is), one will "open up" the ego/personality. And then, having dropped the preconception of a separate self, like a staring scope of spiritual discernment, one will receive penetrating insights into our innate Being. Character transformation follows automatically as one consciously discovers the self actually living/being what before the mind was only thinking.

Therefore one doesn't have to hold onto any beliefs (the past) per se...just live Life as Such is ever-present. Indeed, living is believing!