His_Servant,
I think you ask a great question. I believe in the trinity doctrine.
And it takes courage to tell people that you don't understand this. Alot of us Christians don't really understand this, but this is just because we are so limited as humans.
I would 1st tell you that these questions require prayer and guidance from God. But everything that is essential to salvation is in God's Word. Continue to study and pray.
Here is how I belive the Bible explains the trinity:
In 1John 5:7 it says - "For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one ."
They are one.
I simply believe this...there are 3 literal individuals. This is not 3 God's where like the heathen...one god is over the ocean, once god is over the sky.
No. They are one in purpose, and one in power.
When we pray...we don't have to say seperate prayers for Jesus or for The Father. When you pray to Jesus...you are also praying to the Father.
The trinity, to me, can best be describe in marriage:
"Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh ." Geneisis 2:24
There 2 individuals in a marriage, but God says that they are one. In my opinion this is one of the best ways for us to understand the trinity.
Continue to pray and study and God will give that which you need for your salvation.
Love, SDA