What is "reference points"

Usage examples of "reference points".

Thus the animal locates itself in space by use of environmental reference points (this is of course more or less what a psychologically untutored lay person might have guessed would happen, but it was not what psychologists brought up on a diet of Skinner would have theorized).

And the tapestry gave the required reference points for the jump between whens.

And the tapestry gave the required reference points for the jump between when’.

I no longer have any astrogational reference points and I am unable to say where we are or where we are going,”.

Quick-thought gave it access to the total sum of human knowledge but much of that was useless without reference points.