Abundant thinking is a form of positive thinking. It is about creating a positive value mindset that allows you to perceive your life as one of abundance, not Scarcity.
It teaches you to flip your mental attitude coin from negative to positive and appreciate how much you have in your life to be grateful for.
However, it does not suggest that our gratitude causes us to stop trying harder and accepting our lot in life; rather, it teaches just the opposite: that by recognizing how abundant our lives are, our minds will embrace the concept that the good things in life are potentially limitless.
Abundant means to be richly supplied; to be oversupplied. It means that we should not be afraid to ask for more because we can trust in its fulfillment.