It is in the nature of human beings to place their faith in a system of logic in which the world makes sense. They seek the type of structure which best suits their outlook. If they are the kind who need tangible, visible proof, they turn to science. If they are the kind who need ritual, they turn to religion. If they are the kind who don’t cotton to authority, they take a more nebulous spiritual path.
Strict adherence to any of these paths is not the answer; these are only the ways to the answers.
Most humans don’t get beyond the specific rituals of their chosen path. They follow, but they don’t chart their own way. They stop seeking long before the real quest even begins. They become distracted by easy answers to their questions and quick solutions to their problems.
Gurus speak of becoming one with a higher consciousness. Scientists speak of the wonders and secrets of the universe. Priests and rabbis and imams speak of abandoning oneself to God (i.e. giving up the ego.) They all speak of the same thing. When one understands that, they are just beginning to comprehend.
Humans look for word from on high. They seek guidance. They look for signs.
There are no signs needed. All the answers are within your own heart.