Krsna explains that this Dhama is very dear to Me because you don't need sunshine or moonshine there .

This sentence is very significant because in this creation we can't think of living without sun or moon. With no sun there will be no energy, no petrol. Nothing will come to pass. He says but in that abode there is no sun or moon. That means you are totally free there, here you are dependent. You are dependent on sun. Without sun you cannot think of living.

So, the materialistic dependency that we have to maintain the body is no more there. That means everything is spiritual there.

Krsna says that in this world actually we are leading an unnatural life struggling with our body, mind and senses and taking birth again and again.

In the next two verses in this chapter Krsna explains that the living entities are eternal. That means they have no birth and death but they are leading a very artificial lifestyle which they have to go through again and again. And He says that you are all My parts and parcels then why should you all suffer when I have a favorite Dhama up there. So, why dont you come there?

Why to struggle here? Why not go there? Naturally we belong to Him. So, He is inviting and at the same time He is saying,
I am the sunshine , moon shine, I'm the basis of everything. That tej of the sun is Me. The moonshine which gives the taste in the vegetables is coming from Me. And after eating all those tasty vegetables, in order to digest I come as digestive fire.

So, in this way although we are all away from Him, still He is maintaining. All the source of maintenance is coming from Lord Krsna.