Those who die, merely suffering the woes of life like cats and dogs, are they human beings? The worthy are those who, even when agitated by the sharp interaction of pleasure and pain, are discriminating and, knowing them to be of an evanescent nature, become passionately devoted to the Atman. This is all the difference between human beings and animals.
Swami VivekanandaAll manifest life seems to require a period of sleep, of calm, in which to gain added strength, renewed vigour, for the next manifestation, or awakening to activity. Thus is the march of all progress, of all manifest life - in waves, successive waves, [of] activity and repose. Waves succeed each other in an endless chain of progression.
Swami VivekanandaMan stands in materialism; you and I are materialists. Our talking about God and Spirit is good; but it is simply the vogue in our society to talk thus: we have learnt it parrot-like and repeat it. So we have to take ourselves where we are as materialists, and must take the help of matter and go on slowly until we become real spiritualists, and feel ourselves spirits, understand the spirit, and find that this world which we call the infinite is but a gross external form of that world which is behind.
Swami VivekanandaRealisation of love can never come so long as there is the least desire in the heart, or what Shri Ramakrishna used to say, attachment for Kรขma-Kรขnchana (sense-pleasure and wealth). In the perfect realisation of love, even the consciousness of one's own body does not exist. Also, the supreme Jnana is to realise the oneness everywhere, to see one's own self as the Self in everything. That too cannot come so long as there is the least consciousness of the ego (Aham).
Swami Vivekananda