A person experiences life as something separated from the rest - a kind of optical delusion of consciousness. Our task must be to free ourselves from this self-imposed prison, and through compassion, to find the reality of Oneness.
The power of memories and expectations is such that for most human beings, the past and the future are not as real, but rather more real than the present.
Such philosophy as shall not vanish in the fume of subtile, sublime, or delectable speculation but shall be operative to the endowment and betterment of man's life.
There comes a point in your life when you realize:
Who matters,
Who never did,
Who won't anymore,
And who always will.
So, don't worry about people from your past, there's a reason why they didn't make it to your future.