All that we are is the result of what we have thought. If you speak or act with an evil thought, pain follows. If you speak or act with a pure thought, happiness follows, like a shadow that never leaves.
A single disturbed thought creates ten thousand distractions.
Thoughts are the medium through which the ego, the limited self, appears and paves the way for all our likes and dislikes, pleasure and pain.
Since you alone are responsible for your thoughts, only you can change them. You will want to change them when you realise that each thought creates according to its own nature. Therefore, start now to think only those thoughts that will bring you health and happiness.
Everything is the Supreme Being, which is Existence – consciousness - bliss, and ‘I am That’. By constantly cultivating this pure thought, get rid of impure thoughts. Then discarding even that thought and always inhering in the state of fullness, you will become the non-dual and undifferentiated Supreme Being and attain liberation.

