Kevalah means a pure state above the three gunas of sattva, rajas and tamas. Only by the practice of the original Kriya yoga technique declared by Babaji Maharaj to Lahiri Mahashaya and then through Shriyukteshwarji, Paramahamsa Yogananda and then to myself and so on can one attain this state of practice .
A Kriyavan always focuses attention in the fontanel in the atom point. In hatha Yoga Pradipika 4:114 it is written yavad bindur na bhavati dhira - so long as your mind is not fixed in the atom point you cannot progress in meditation. In the same scripture again it is said,
Yavan naiva prvisati caran maruti madhya marge - as long as your breath does not become feeble and equally distributed through both the nostrils allowing the breath to flow through the susumna, you cannot proceed further in meditation. Kriya yoga is the simplest easiest, quickest, surest and the best technique for the simultaneous development of body, mind, intellect, and soul.
It is said, Japat santo punah dhyayet dhyanat santo punah japetYou may do worship and chant the name of God as you wish but after that you must also meditate. You can alternate puja with meditation but you still have to meditate. It is a must and the only passage to God realization.
Stitha Prajna - July, 2007