In the shabasadhana of the tantra, the sadhaka normally worships Mahavidyas ie devatas like Kali, Tara etc, who are Brahma according to the Tantras. After the sadhaka gets siddhi, he has to remain confined for fifteen days as the 'devata' resides within the body of the siddha. If he hears songs, he becomes deaf. If he sees dance, he becomes blind. If he speaks in day time, he becomes dumb. If he enjoys sex, he becomes diseased. After performing many rites on the sixteenth day, he becomes eligible to lead a normal life.
The 'devata' before giving siddhi asks for some bali (sacrifice) like elephent, man etc. The sadhaka has to say:बारान्तरे दास्यामि ie I shall offer you later. On the next day, he has to prepare a doll of elephant or man etc, (whatever was wanted) by powdered rice and offer the bali to that deity.(Ref: Tantrikguru, Nigamananda Saraswati ; Sashtramulak Bharatiya Shaktisadhana by Upendrakumar Das,vol 2)
On the otherhand, the Upanishads says that one who at the end of brahmavichara sees God दृष्टे परावरे (as in the famous verse of the Kathopanishad) or Brahma becomes free from all karmas and he becomes full of bliss and free from fear for ever like न विभेति कदाचनः & कुतश्चनः.
How can these two different descriptions of illumined souls be reconciled? God is one and so both should yield identical results!More precisely, is a tantrasiddha permanently relieved from tritapajwala as is a jnanamarga or bhaktimarga siddha?