i have been quite regular with the walking exercise that the Master recommends in Lesson#5
i always liked this one; 'We are surrounded by a halo of conscious cosmic energy...by wireless will power we can draw upon it and bring it into our body through the medulla oblongata..'
“The medulla oblongata is the antenna of the bodily receiving station that receives the radiographed cosmic energy from cosmic consciousness through the bodily radio operator - - will. Just as man can use the invisible vibratory waves of radio to control far distant ships on the sea, so God, through vibrations of his intelligent cosmic energy, supplies our bodies with life force without any visible connection.
God created the original cosmic vibrations or energy which, once started became perpetual and by wireless willpower we could draw on it and bring it into the body through the medulla oblongata”
~ Paramahansa Yogananda