Determinate?

Let us imagine of having a piece of string. The boundary condition is that the ends of the string are held in our hand as shown below:

The other scenario is when the string is floating in free space as shown below:

It can take any shape. At some instance, it is likely that the string will have a determinable shape, and in this case, let us take the 2 imaginary points A & B, when it is in a straight line for making the discussion simple.  

What is the similarity and difference in the above 2 scenarios?

At some point of TIME, both segments of the string may have a similar shape i.e a straight line, or more generally a shape that can be determined and defined. The difference is that in the former, the ends of the string are held and therefore there is a tension in the string between the ends. It is this force at the ends of the string that gives it the shape .In the latter, there is no tension between the ends.

Life is exactly like the string in the second case.

The ends are indeterminate – like the string. We operate in a limited boundary and define the various milestones. We are happy when some or many events fall in place as predicted, but we fail to understand that these truths are just an illusion, like the points in the second string and not permanent.  Points A & B are analogous to birth and death, both of which are not in our control, as in the string in the second case, and yet we take pride in how much control we have on the various points, between A & B.