What I have learnt and would like to enlighten you with is the DIP CURVE, for attainment of MASTERY.
In his book Dip, Seth Godin has mentioned about the DIP CURVE, the journey towards attainment of mastery.
Like our life has ups and downs, the journey towards Mastery is filled with pitfalls.
He who gets out of the DIP by showing the right amount of resilience, wins in life.
Hence I find this DIP CURVE not only realistic but very inspirational as well.