Here. the Lord has used three adjectives, to express the past, the present and the future for the beings, but for Himself, He has used only the present.
It means that in God's eye, the past, the future and the present are simply present.As in a movie, the incidents, for persons seeing a movie seem to occur in the past,
the future and the present,while in the film they are all in the present.Similarly, from the view point of beings, but in realiy, there is only the present, because the beings are within a limit of time, while the lord is beyond the limit of time.Time, things, men, incidents and circumstances etc., change, while God ever remains the same.Knowledge of the beings, who are bound by time, is limited, while knowledge of God,is limitless.All beings of the past, the future and the present,constantly abide in God, they never be separated from Him.It is beyond His power, to separate Himself, from them.So, they can never escape, His observation.
Delusion, arises from desire and aversion, and it is because of this that beings,having disinclination for God, follow the cycle of birth and death.
Man, by having the disinclination for the world,should be engaged, in adoration of God.The main obstacle to this engagement, is that a man, without attaching the importance to discrimination, performs actions being guided by attachment and aversion, thus, he degrades himself.A man, has two contrary mental dispositions - inclination and disinclination.He, has to be inclined towards God, and to be disinclined, from the world and has to be devoted to God, and dispassionate, to the world.
But , when applies both these dispositions to the world, his devotion and dispassion are respectively changed into attachment and aversion, which cause him to be entangled in the world and he has a total disinclination for God.Thus, because oh his attachment and aversion, to the pairs of opposite such as pleasure and pain,he cannot move towards spirituality, even though sometimes he may attained religious discourses, study the scriptures and think over them.But, because of his attachment to the world, he has a mind, that he has to make efforts to cause the favorable circumstances, and do away with, unfavorable ones, as he cannot maintain his body, without these.