Saving or accumulating things can represent an actual, desired, or feared:
Situation of having plenty or too much of something (e.g., money, possessions, love)
Shortage of something, and wanting to save up to compensate for it
Procrastination or postponing, as in delaying something until later
Letting things pile up emotionally, such as grudges, blame, or judgments, by not working through them
Hoarding or keeping things for yourself (such as money) or to yourself (such as secrets)