The cereal or grain offering

Leviticus 2:1-16
Priest take a handful of the fine flour and oil , together with all the incense, and burn this as a memorial portion on the altar.
The rest of the grain offering belongs to Aaron and his sons.
Bring grain offering is prepared on griddle, of pan, it is to be made of fine flour mixed with oil and without yeast.
Season all your grain offerings with salt. do not leave the salt of the covenant of your god out of your grain offerings; add salt to all your offerings.
Bring grain offering of first fruits to the Lord, offer crushed heads of new grain roasted in the fire. Put oil and incense on it.
Often an accompaniment to burnt - and peace-offerings.
Why?
Salt means the effect of permanent in New Testament.
God is holy so do not mix with yeast, Yeast means the evil or bias.
Do not mix with any dirty idea or mind in Christian's life.
Rest of grain offering can supply priests daily life.
How?
We are the salt of the earth and the light of the world.