Center, Vairocana, or <Universal Light.> Buddhas here are portrayed
       Dharmacakra mudra, <turning the wheel of the doctrine> (right thumb
       touching left middle finger), symbolic of the Buddha's preaching his
       first sermon.  
       Then on the first four ballustrades:
       East, Aksobhya, <The Unshakable.> 
       Bhumisparsa mudra, <seal of touching the earth> (right hand palm down
       resting on the knee), symbolic of sacrifice.
       South, Ratnasambhava, <The Matrix of the Jewel.> 
       Vara mudra (right hand held palm up), symbolic of charity.
       West, Amitabha, <The Infinite Light.> 
       Dhyana mudra (both hands on lap, palms up), meditation.
       North, Amoghasiddhi, <The Infallible Realization.>
       Abhaya mudra (right hand up, palm facing out), eliminating fear.
       Fifth ballustrade, all around.
       Vitarka mudra (right hand up, thumb and left forefinger touching),
       symbolic of preaching.