Spiritually speaking, what makes you confident your beliefs are correct?

Atheist, Christian, Muslim, Jewish, Catholic, etc... what has caused you to accept your beliefs as correct? Additionally, how much do you rely on "feelings" in forming your beliefs? In the case of the religious amongts us, do you "feel" the spirit/love of God (whatever you wish to call it) or base your beliefs on observable fact? Does feeling something is true mean it is? Do facts you haven't personally tested but only learned from a reliable source?