4Remain in me, and I will remain in you. No branch can bear fruit by itself; it must remain in the vine. Neither can you bear fruit unless you remain in me.
5"I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing. 6If anyone does not remain in me, he is like a branch that is thrown away and withers; such branches are picked up, thrown into the fire and burned. 7If you remain in me and my words remain in you, ask whatever you wish, and it will be given you. 8This is to my Father's glory, that you bear much fruit, showing yourselves to be my disciples. 

… the four seasons of the year called, spring, summer, autumn and winter, the four periods of the day called morning, noon, evening and night, the four ages of man called infancy, youth, manhood and old age, and all other things which either come into existence from time or have a succession in accordance with time. In thinking of these, a man thinks from time but an angel from state. In consequence, what is in them from time with a man is, with the angels, turned into an idea of state. Spring and morning are turned into an idea of the state of love and wisdom such as they are in their first state with angels …

Those who are in heaven are continually advancing towards the spring of life, with a greater advance towards a more joyful and happy spring the more thousands of years they live; and this to eternity, with increase according to the growth and degree of their love, charity, and faith.

Moreover, because a life contrary to charity is to charity as winter to spring in frigid zones, these are not regenerated, but only one who is like winter compared to spring in temperate zones, and so forth.

The Lord from eternity, or Jehovah, produced from Himself the sun of the spiritual world, and out of it created the universe and all of its constituents.

The sun is not God. Rather, it is an emanation from the divine love and wisdom of the Divine-Human One. The same is true of warmth and light from that sun.  …. .. It is obvious from actual experience that love generates warmth and wisdom generates light.  When we feel love, we become warmer, and when we think from wisdom, it is like seeing things in the light…   We can also see that these are correspondences, since the warmth does not occur within the love itself but as a result of it … The light does not occur within the wisdom, but in thinking of our discernment and therefore in our speaking.