Sri Krishna said in B.G.:
मां च योऽव्यभिचारेण भक्ितयोगेन सेवते।
स गुणान्समतीत्यैतान् ब्रह्मभूयाय कल्पते।।14.26।।
Whosoever serves Me alone with an unfailing devotion-Yoga, he, transcending these Strands, turns to be the Brahman.
One must understand that the purpose of reaching highest stage in SPIRITUALITY/BRAHMAN, is to attain ABSOLUTE BLISS , ...
As per Chapter 5th of Kurma Purana,
17b. One day of god Brahma is called a Kalpa and his
night is of the same duration.
-19. Learned men say that a thousand sets of four
yugas constitute one Kalpa. Three hundred and sixty Kalpas
make one year of god Brahma, O excellent Brahmanas,
Hundred times of that period is called a Parardha by them.