Give up all thought

Remain indifferent to the body and senses, and outer things that follow
you like a shadow. Be one who discriminates, free from the stain of samsara,
and from tendencies and sense objects. Retain consciousness without
thought. Retain form, though formless.

Have no likes and dislikes in what is experienced at the moment, and no thought
of what may happen in the future. Give up all thought of inner and outer, and
concentrate permanently on the blissful experience of Brumm-hun. Through the
power of knowledge, maintain perfect equanimity in the face of all opposites
such as vice and virtue, likes and dislikes, or praise and blame, whether by
sadhus, or by the wicked.

--Vivekachudamani, Collected Works of Sri Ramana Maharshi.