i cant finish prince of persia! (is this a glitch?)

i have healed all the grounds.
now i have to enter the glowing door of light inside the temple
i cant enter the door !
is this a glitch? what should i do :S

it's been awhile since i played this game..

you healed all the grounds..

finished off all 4 of the bosses..

you went back to the temple and can't get in?