the Calm and the Passion

I have often wondered at the difference meanings given to the words passion and spirituality across Christian denominations.  In some evangelical Protestant churches these terms connote wild outbursts of emotion, passionate singing, shouting out Amen in church services.  For more sedate Anglicans and Catholics, and especially the Orthodox and Uniate churches of the East, it means deep, silent meditation that might produce tears in the one meditating, but more often a total silence and separation from emotion.