Isolation is the manifested experience within self and within your world due to and because of the belief that it is "too late". If you observe the word isolate, I-so-late, Im so late.

Isolation--meaning, the act of you isolating yourself and the experience of isolation--is due to and because of the belief existent within yourself that it's too late and that you've actually given up on yourself within yourself and within your world; and because of the belief of being too late, you believe that you are hopeless and helpless; and because of the hopelessness and helplessness, you give up on yourself and then isolate yourself within you and your world to retreat—meaning, to retreat within you and your world--to slowly but surely remove yourself from your world because you have accepted and allowed yourself to define yourself upon something or someone outside of you.

Let's take an example to explain. Let's say you had a certain a task--a certain task to fulfill--and within yourself, you had a certain, particular expectation to fulfill that particular task; and because you couldn't live up to your own expectation of you with regards to fulfilling this particular, specific task, which you projected into the future, you gave up on yourself within yourself. And because you gave up on yourself and judged yourself and accepted and allowed yourself to be disappointed in you, you went into an experience of hopelessness and helplessness--meaning, the belief that it's too late, Ive fucked up, I cannot and will not move me/will me to fulfill the task at hand--and then what occurs is you literally retreating inside yourself to isolating yourself actually because of fear, fear of failing again, fear of not living up to your expectations.

Therefore Isolation is because of fear, fear of being existent within and as you believe it's too late now, I-so-late, I'm so late, It's too late, I've fucked up, it's done, I cannot do anything anymore so let me retreat within myself into isolation because I believe now it is too late, I can't do anything. (less info)