Our earliest awareness in the absence of the tools of attention is the biggest hurdle in our acapacity to attend to various things. When we are born, our senses of cognition are at a rudimentary stage. We perceive with wahtever sense capacity we have and our ever changing formative memory built on transitory sense experience alone goes dormant and for ever keep obstructing later application of attention.
Memory is mind. This is how our mind begins forming.