This devotional from Charles Haddon Spurgeon seems to be a "Word in due season" to me. Our life in Christ is organic, He is the Vine and we are the branches. Christ is our nature, displacing all that has gone before Him. As Paul writes, "...old things passed away, new things have come" (2 Cor. 5:17). In this present distress, let us not live as who and what we once were outside of Jesus Christ, let us live as who are are in Him, the sons and daughters of the living God. For as He is, so are we in this time of distress (1 John 4:17). The creation is not groaning that we would live as we once were, but rather that we would live as the sons and daughters of the living God (Romans 8:18 - 25). 

Why do we eat pigs food when we could live in the House of our Father? (Luke 15:16 - 17).

From Spurgeon:

"The trees of the Lord are full of sap."

Psalm 104:16

Without sap the tree cannot flourish or even exist. Vitality is essential to a Christian. There must be life--a vital principle infused into us by God the Holy Spirit, or we cannot be trees of the Lord. The mere name of being a Christian is but a dead thing, we must be filled with the spirit of divine life. This life is mysterious. We do not understand the circulation of the sap, by what force it rises, and by what power it descends again. So the life within us is a sacred mystery. Regeneration is wrought by the Holy Spirit entering into man and becoming man's life; and this divine life in a believer afterwards feeds upon the flesh and blood of Christ and is thus sustained by divine food, but whence it cometh and whither it goeth who shall explain to us? 

What a secret thing the sap is! Hidden below the surface of the soil the roots search for the life force of the tree. This work is done down in the dark. Our root is Christ Jesus, and our life is hid in him; this is the secret of the Lord. The source of the Christian life is as secret as the life itself. How permanently active is the sap in the cedar! In the Christian the divine life is always full of energy--not always in fruit- bearing, but in inward operations. 

The believer's graces are not every one of them in constant motion, but his life never ceases to palpitate within. He is not always working for God, but his heart is always living upon him. As the sap manifests itself in producing the foliage and fruit of the tree, so with a truly healthy Christian, his grace is externally manifested in his walk and conversation. If you talk with him, he cannot help speaking about Jesus. If you notice his actions you will see that he has been with Jesus. He has so much sap within, that it must fill his conduct and conversation with life.