Its a personal thing. One size does not fit all.<quoted text>
All technologies are not equally constituted, right?
So, all spiritual technologies are not equally efficient.
The efficiency of a spiritual technology would be revealed by its power to investigate the various grades of the Manifestation as well as the Source of the Manifestation through a direct union in consciousness and energy of the subject with the object.
1) So, how does one come into direct contact with the 3rd or 21st planes of cosmic consciousness?
2) What is the spiritual technology you would employ to revive a dead organism?
3) By what spiritual means would you simultaneously manifest in 5 different locations without leaving your seat?
4) What spiritual technology would you use to make your physical body immortal and invincible?
regarding your 4 questions, that is not within the realm of spirituality. That is in the realm of parlor tricks (i.e. magic).