Moreover we must be capable of loving passionately. We have to be able to fall in love - so that at some time in the future to find ourselves capable of falling in love with God. Yes, we have to be able of being passionate. We develop this capability in ourselves here, on Earth - dramatically and over a very long period. We fall in Love with each other, with our cars, our academic papers, earthly titles and degrees, idols.
Earthly passions are rajas.
But it is not possible to enter the sattva guna bypassing rajas. Only that sattva is firm and steadfast which is based on personal power developed in the rajas guna. That is those suffering and seeking personal achievements in rajas guna - they are not wise as yet, but unlike people of demonic nature they are on the path to Perfection. Buddhi-yoga techniques will be that which will allow to turn to God in reality. And it will be the passionate love for Him that will enable us to get foothold in this state and advance farther.