Why has blood been the most essential component of life in human beings?

There's a long explanation of this, of which I shall give you in two or three sentences. Haha

I could write a book on this but I will say this, off the top of my head:

NONE of the following....possible, without the sacrificial blood of atonement for our sins, in Christ.

Spiritually speaking, there is miracle-working power in the Blood. That is, the blood of Jesus. There is:

Power
Redemption
Life
Death
Forgiveness
Grace
Faith
Cleansing
Salvation
Transformation
Strength
Peace
Eternity
Heaven
Joy
and Love....

ALL...made possible, by the shedding of Jesus' pure, innocent, sinless blood.

Without the shedding of blood, there is no remission of sins. Hebrews 9:22

Blood is the most important thing in eternity. It saves Souls and Jesus wanted us to know that there is life and death in the blood, to show us that by his death and shedding of his precious blood, he was giving his All To Us. His very best! There is nothing more precious than life and nothing says I love you, more than one giving their life for another. That's why blood is important. Jesus was saying to us, I not only said I love you, I have proved it! There was nothing more he could give! And he gave it all for us. He wanted to make sure none of us would miss heaven, though he knew some of us would reject his free gift of salvation. Yet he volunteered to die anyway, hoping those who do not believe, may someday believe. He is not willing that any should perish. He turns no one away.