Four Great Elements == 四大
All matters are formed and are composed by four conditioned causes :
(1) earth, which is characterized by solidity and durability
(2) water, which is characterized by liquid/fluid and moisture
(3) fire, which is characterized by energy and warmth
(4) wind, which is characterized by gas/air movement
Four Great Bodhisattva == 四大菩薩
They represent the four major characters of Bodhisattva:
1.Manjusri - Universal Great Wisdom Bodhisattva
2.Samantabhadra - Universal Worthy Great Conduct Bodhisattva
3.Ksitigarbha - Earth Treasury King Great Vow Bodhisattva
4.Avalokitesvara - Guan Shr Yin Great Compassion Bodhisattva