"Crossing the River Jordan" symbolizes the movement of a human's consciousness, a transformation from the earth-bound viewpoint to a transcendent one. When a person realizes (not just believes) his/her identity with the Source, or Divine, or God (whatever you choose to call Original Cause), he/she has "crossed," or in some church terms, has been "born again."
This movement is not a matter of belief, which amounts to a notion or concept held to be true, a word-symbolization of What Is; realization is a knowing, as in knowing that you are, that you be (as in I Am).
Celebrate that you are (we are) the Son(s) of God.