In plain words
The love one has for one's own sake is called anurāga; the love for God's sake is called Prema. This is how far Prema is from anurāga.
Gratitude and ingratitude
Self-interest and one's own advantage: these two are man's chief qualities. Because of them he cannot recognise the divine power. However many sādhanas one does, however many books one reads, however many meditations one does, however much japa one practises, however many bhajans one sings, the stain of self-seeking that is rooted deep is not so easily cleaned. Only when one drives away the bad qualities, bad feelings and bad thoughts in oneself does Divinity spring up.
Ingratitude is itself a great sin. This sin bows man's head and brings him many kinds of suffering. “Through whom did I reach this position, through whom have I been able to enjoy this fame, who is the cause of such progress?” People forget the help they had. One who forgets the help he had is, in God's eyes, equal to the dead. So the life of one without gratitude is equal to death. You must show gratitude to those through whom you received help. Today you may be a big man, you may be learned, you may be rich, you may hold office; but through whom did this position come? People forget this. That is why man is rooting out all his values. This pride, this show, this greed are burning humanness to ashes.
Mother and father
Embodiments of Prema! Put away your pride and your attachments, grow in the principle of Prema, and give up self-interest. Self-interest there must be, but within its limit; if there is no limit, man falls into great dangers. In the humanness of today the honour given to ‘mother and father’ has become nothing at all. This fool, who cannot satisfy the very mother and father who raised him, gave him their blood, shared their food and clothes with him and nourished him in every way, is equal to the dead; how can he be equal to the living? All our śāstras have said, “Mātṛ devo bhava, pitṛ devo bhava, ācārya devo bhava, atithi devo bhava.” What is the use of one who cannot hold mother and father in right regard? So, just as one was born from the womb of one's mother and father, so this society too has come forth from the womb called Saccidānanda.