Ilusion: things that appear to be real but are not. Delusion: they are deeply held false bielief or believing something that its not true
Illusion is abnormal perception of real one Delusion is falls believe (not perception)
Anxiety is defined as a diffuse, unpleasant, vague sense of apprehension.” It is often a response to an imprecise or unknown threat. Fear on the other hand is an emotional response to a known or definite threat.
A key difference between fear and anxiety rests in the nature of the threat, as well as the physiological elements of experiencing the two distinct emotions.
The difference between anxiety and fear is that, unlike fear, symptoms leading to anxiety occur even though there is no apparent risk or cause for physical harm. More often than not, the reason the individual feels anxious cannot be pinpointed. This is in stark contrast to fear, where the individual can readily determine the root cause of their fear. Those who suffer from anxiety find themselves helpless and unable to cope with their symptoms to such an extent that that it begins to interfere with their daily activities and interactions with other people.
