ভূমিকা
Anything that is hidden or concealed from us - whether this is something physical which is discernable by the senses or something that is Divine, however it has been clothed with the physical (world) and is far from being discernable by our senses - is referred to as being of the hidden (غيب) .
Those events that have occurred in the past or the events that will come about in the future, even if on their own are things which can be recognized by our senses, however in the present time they are outside of our jurisdiction, are also clear examples of what is considered as unseen (غيب) .
Those affairs that naturally cannot be discerned by our senses and which are far above that which mankind is able to discern or understand with his limited ability of perception such as the Essence of Allah (Glorified and Exalted is He) or His Characteristics; the reality of the raising up from the graves and many other things are all issues that are related to the Knowledge of the Unseen and it is only Allah (Glorified and Exalted is He) who has complete knowledge of these things.
Until that time that mankind does not understand and unlock the mysteries of the universe, method of creation, the rules that govern the world of creation, and does not gain knowledge of these things, all of these will continue to remain as issues related to the unseen, which maybe slowly and gradually will enter into the knowledge of mankind.
The tiny and minute creations and also the large creatures that exist around us - both those that live on the land and in the depths of the oceans which are scattered around - have all been created according to their own disciple and order, and all of these will remain as issues of the unknown.