When you search for something do you simply hold a static template of it in mind. Apparently not. Your search template waxes and wanes, waxing with the anticipated moment of search. When the template is strong, your eyes move less.
Olmos-Solis, K., van Loon, A. M., Los, S. A., & Olivers, C. N. (2017). Oculomotor measures reveal the temporal dynamics of preparing for search. Progress in Brain Research.