Learning the stages is extremely important to attain the ability to develop the aspiration for benefitting all sentient beings.
To walk on this Mahayana path, we must first understand the stages of the bodhisattva path, only then we can complete the quality and quantity we set out in the beginning. We must also learn from successful people; the most successful teachers benefiting all beings are the Buddha and Lineage masters. Therefore, we need to learn the "Stages of the Path to Enlightenment"!