In order to experience physical existence as we do now, we, as God before, when we were in Heaven, and one with God, as God, have created time and space in this planet, in this physical existence, so that we can experience separation from God, so that we can reunite with God again and enjoy bliss again. That's how it goes on for eternity. We forever create new dimensions, new experiences, so that we can remember God again as God and as a creation of God. So when we are in this dimension there is time and space, and that's how things take time to manifest, take space to materialize. In Heaven, everything is together. Everything is together in one time and one space. There's no separation ever.
Everything is separated by time and space. It is because our creative minds have wanted it that way. Now we have forgotten that we created it. We have forgotten. Never mind. You will remember if you practice the Quan Yin Method of meditation. You will remember everything - who you are, why things happen to you, what you have created, why it comes to you...