ואנכי הסתר אסתיר פני (וילך לא:יח)

Harav Hakadosh Reb Menachem Mendel of ’Vorka zt’’l explained: Just like children play hide-seek and the child who hides yells out, “I hid, find me!” The child who needs to find his friend is smart enough to figure out the location based on where his friend’s voice is coming from.  He seeks and finds him. So, too, is with Hashem.  Hashem calls out, “I hid. Find Me!”  One who is smart enough hears the call from Hashem beckoning to Him and is aroused to seek out Hashem, and he finds Him.