Can there be life inside the earth?

I was watching the water flow from the tube well. All of sudden I thought to myself, how is water stored inside earth? To store water you need a hollow space. So can it be that there earth is hollow and there may be life inside the earth? May be GOD or may be Aliens or some thing else might be living there.

Even oxygen must be present insde the earth too. Earthworms hide themselves insdie the earth, but to live they too must be needing oxygen isn't it? Also frogs hibernate inside the earth? So this proves there is enough oxygen insdie the earth.

All the time we have been exploring the Space for Alien life and it is just below our feet. There may be trees growing inside the earth too. But then you might argue that tree or life needs sunlight.

Not necessary. May be they don't require the sunlight and have adapted themselves to darkness (just like the worms inside our stomach) , or the other possiblity is that as the centre of earth is burning. This burning might be generating enough light just as a Sun does?

So the water which we draw through the tube well might be actually providing them water in form of rain & the lava that comes out might be just the waste that is thrown out by those living down there.

So be careful while using the water. The life inside might get angry and come out due to scarcity of water.