Many things are mechanical and should remain mechanical. But mechanical thoughts, mechanical feelings - that is what has to be studied and can and should be changed. Mechanical thinking is not worth a penny. You can think about many things mechanically, but you will get nothing from it.
When one realises one is asleep, at that moment one is already half-awake.
Desire is when you do what you want, will is when you can do what you do not want.
Everything 'happens'. People can 'do' nothing. From the time we are born to the time we die things happen, happen, happen, and we think we are doing. This is our normal state in life, and even the smallest possibility to do something comes only through the work, and first only in oneself, not externally.
We often think we express negative emotions, not because we cannot help it, but because we should express them.