Realise heaven on earth - Kena upanishad

The keword at the end of kena upanishad is Prathishttathi to the one who undergoes the states of experience mentioned there in. Prathishttathi means a minimum placement in heaven at all time for further progress in other higher level conciousness. It emphasis the importance of human body by constituents and it's greatness to be the knower of absolute truth while on earth which is greater than heaven. Other upanishads also state its ability to stop food for gods too. http://www.san.beck.org/Upan1-Kena.html

Knowledge of natural migration after death - taittiriya upanishad

Taittiriya upanishad reveal dual and non dual concepts in human body,
soul and the supreme self. The pancha kosha ie food, vital breath and
force, mind, knowledge, bliss are important conciousness. In
meditation one undergoes the experience and knowledge of these states.
The 101 nerves from heart, its shape and size and connection with
different parts of body is vital in mind application. After death,
journey begins through medium of sun ray,moon , different worlds to
sky of supreme self ie. surya akash.

Taittriya upanishad reveal dual and non dual concepts in human body, soul and the supreme self. The pancha kosha ie food, vital breath and force, mind, knowledge, bliss are important conciousness. In meditation one undergoes the experience and knowledge of these states. The 101 nerves from heart, its shape and size and connection with different parts of body is vital in mind application. After death, journey begins through medium of sun ray,moon , different worlds to sky of supreme self ie. surya akash.

Upanishad or upanishabth meaning

Many has defined the term "Upanishad" in literary and word formation sense as "brahma vidhya" ie. knowledge of supreme self. It's observation of the individual who had known the supreme self. Upa-ni-shabdh aslo means the same. Upa means nearness , closeness, alternative etc. and nishabdh means silence. There are some reference to Upanishabdh also by writers as "Nearness to silence". "Ni" also means for ragam nishadam which related to root chakra, it also correspond to vital force cause source of thought.

Do reading upanishads help?

Some upanishads state that reading them help to get rid of sins. This
need knowledge to prepare question by onself on the idea of good and
bad, right and wrong, pure and impure, violence and nonviolence etc..
by a common priniciple called neti, neti ie this isn't, this isn't.
Concepts of duallity or partiallity never work with spiritual
progress. Nutrality is what needed one to come above the level of
fear. Belief or Imanagination dont work, answers found by one can
verify with upanishads.

Guru meaning

In upanishads guru means remover of darkness. Only you can remove the
darkness in you by efforts and focus. The movement you see light
within you, your darkness is removed. It does not attribute any
individual particularly. You will never have a guru other than whats
within your heart. There are many forms and names out there who could
help you find the supreme self or guru within you. If you call any
human as guru, for one with higher level of conciousness its simply a
name and efforts of them are karma.

Madness in Mysticism, yoga and upanishads

When a person consider and practice one part of a tattva, a mystic has knowledge of the other part viz. if one practice nonviolence and fasting for a long rime, the mystic know the end result will be violance and consumption for long term. Thats the easiest way by wich they do quarrel in their mind and torture the universal mind frame by consuming the finest food through breath. When a person says don't use niyama in yoga as one part then he is considered as mystic and mad by the ignorants . The one track mind is real madness of human. http://advayataraka.mywapblog.com/