I am the most important thing, but most people forget me. Once you find me, you never want anyone else to know what I am.

I have no hands but measure time with grains. If you turn me over, my journey begins again. Solve the riddle → What do you have that you can give to another person, but still keep yourself? Solve the riddle → What is it you can only get if you lack it? Solve the riddle → What kind of fish always has ink, but can never write a letter? Solve the riddle → What has squares but is not a window? Solve the riddle →