Unable to perceive it with our senses we can conceive of it...
Unable to perceive it with our senses we can conceive of it only by means of rational proofs or the reports of those persons who do have awareness of it and the hidden matters it contains. Such persons guide us with their pronouncements to truths of which we would otherwise be unaware. This is a part of our creed and our faith. Our deficient and limited beings are then imprisoned within the four walls of matter and we are deprived of perceiving many mysteries.
In fact even our ability to perceive the phenomena of the sensory world is limited and conditional. Thus it is that for us being is divided into the two categories of the manifest and the unseen. However the hidden non-sensory phenomena that are concealed from our perception are utterly clear and manifest to the Lord of the Worlds the Creator Whose dominion and power embrace every atom in the universe and Who comprehends the totality of time and space.
No obstacle hinders His infinite knowledge and unbounded power. Past events that have been effaced from our memories and not even recorded in history are present to God's view and observable by Him.
( 205 ) Paradise hellfire and resurrection all of which are from our vantage point due to occur at some distant and unknown point in the future and the nature of which is utterly inconceivable are present realities for God the Creator Whose essence escapes all limitation and Whose sacred presence informs every part of the universe; He is aware of everything without exception. Phenomena that occurred billions of years ago or will occur billions of years from now are fully known to God.
For us however the ability to conceive of past and future events is strictly limited by the fact that we exist within the confines of time and space for we are material beings and according to the law of relativity matter needs time and space for the process of constant change in which it' is engaged. God's knowledge is unmediated immediate in the fullest sense of the word although somewhat comparable to our own awareness of our selves.
While His essence is utterly other than the phenomena He creates neither is it separate from them; all things past and present are immediately present before Him.