"The real meaning of form is made clearer by its opposite. We would not recognise day as day if night did not exist. The ways to achieve contrast are endless: the simplest are large/small, light/dark, horizontal/vertical, square/round, smooth/rough, closed/open, colored/plain; close/distant, all offer many possibilities of effective design."
—Jan Tschichold
Space is one of the most important elements of visual design but it also has the potential to break the visual consistency and hierarchy of design because of ad-hoc values.
Using spacing tokens is the best way to remove guess working and stay away from inconsistent, ad-hoc spacing.
With Toolabs DSM, you can create a predictable and harmonious spacing with modular scales. Check the section for Modular Scales to see how scales are generated.
Here are some good articles on spacing for further reading :