It is important to understand, how the term is used in the context you are finding it in. Its use in psychology may offen differ from that in spirituality, but even there are various uses / definitions within the spiritual field. The "self" in "deny thyself" is certainly, I believe, not the TRUE SELF I will be speaking about below (in this context, also see the August 2011-meditation named here).
It is often, e.g. in Theosophy, made a difference between the
Higher Self: [...]
Lower Self: [...]
It is recommendable to read about "Atman" und "Brahman".
If you are a friend of me or a former student and feel you have information that should be added here, please let me know.
© 2011. All rights reserved. Om Param Atmane namaha.