Jai Sri Ganesha,
First milestone on the path of Yoga is to optimize the pitch of breathe to establish harmony between mind and the life,
Second stage is the concentration which unlock the inner pathway,
Threshold is meditation to meditate unto truth f self to reach at the eternity man belongs to,
Rest follows of its own like invert gravity to lead in acceleration but with truth of calm and peace to reach at the safe shore for cause eternal,
May Lord bless all,
Thanks please