When his maturity reaches the level of understanding the real purpose of this world and how temporary it is he "will commit himself- in thought, soul and body- to GD may He be exalted". He will yearn for and treasure the moments he can think of H'shem when he is alone. He will feel empty when his mind wonders away from H'shem. Even when he is among others his desire will be to only think of H'shem and please Him. The love he will have for H'shem will be by far greater then any worldly enjoyment even the yearning for Olam Haba.
pg 469
pg 469
