Ramana Maharshi conveyed his essence of teaching in 30 Sanskrit slokas and he integrated various spiritual disciplines in that teaching.He highlighted the advantage of doing self-inquiry.Daily it is sung in Ramanasramam in the morning ritual of Phalabhishekam.It has a great depth of meaning in it and it is an Upanishad by itself.

Extended description
Upadesa is a Sanskrit word which literally means facilitating an entity to come back to its source,its home.Saram means the essence of such instruction towards that direction.The essential nature of mind is consciousness.But being covered by cloud of tendencies,past experiences,thoughts mind forgets that its nature is consciousness.This is called Self-forgetfulness.A mind that is in a state of Self-forgetfulness(Atma vismruti) leaves its source which is Self and identifies with non-Self adjuncts like the ego(Ahamkara,"I" thought),thinking process(manas)intellect(Buddhi),memory
(chitta)the physical body and seeks happiness outside and in the process collects lot of misery because of conflict that is...