For animals and for plants, they are not the same.
Although i cannot say (Since i am not of Biological Background,only did it untill High School,which i have completely forgotten by now) that Plants have a Proper Brain or a Nervous system,The perception of Plants of the World itself may be as yet unknown,but there are some cases in which plants demonstrate affinity towards Watering etc,that may suggest something indeed about their albeit natural behaviour that we dont understand correctly.We dont even understand our perception of world really well.Perception of Plants towards their sense of Reality must be different than ours,but it might just boil down to the same,if you think in broader terms.Plants,also believe what reality is according to how they make their food,how they get their water supply.For them reality might just be what they "feel" according to what i said.
On the other hand,May be we still dont know defintion of conciousness of Plants,so it might be difficult to come to a conclusion as to how much different are we from Plants and their consiousness(if they have any).
If indeed,this is an illusion,the big question is : Are
we inside a computer program?
We can only measure illusion by the status of ones who are not in illusions,Unfortunately we dont have technology to travel interdimensionally today,then perhaps we would have known that.If everyone of is inside a BIG illusion,then we may as you point out,never know,Since in this world which we are born,we have not seen any Faults,inconsistancies,since we havent really seen the
Outer world.
Some food for thought :
May be heaven talked about is just a perfect world and therefore this can be used as a yardstick for measuring the illusiveness of this world.May be someday someone can wake up from this Sense of reality and see another reality,which is more real and then again wake up from that illusion to enter yet another one...hmphhmph....i am already panting...
...So may be this thread adds a new dimension to my theories,that we may be inside a computer.So the thread of yours may ultimately be answered : We already know whats life like inside a computer...
just some random thoughts...
bye!