basically

and you should not let yourself be confused in your solitude by the fact that there is something in you that wants to break out of it. this very wish will help you, if you use it quietly, and deliberately and like a tool, to spread out your solitude over wide country. people have (with the help of conventions) oriented all their solutions toward the easy and toward the easiest side of the easy; but it is clear that we must hold to what is difficult; everything alike holds to it, everything in nature grows and defends itself in its own way and is characteristically and spontaneously itself, seeks at all costs to be so and against all opposition. we know little but that we must hold to what is difficult is a certainty that will not forsake us; it is good to be solitary, for solitude is difficult; that something is difficult must be a reason the more for us to do it.
to love is good, too: love being difficult. for one human being to love another: that is perhaps the most difficult of all our tasks, the ultimate, the last test and proof, the work for which all other work is but preparation. for this reason young people, who are beginners in everything, cannot yet know love: they have to learn it. with their whole being, with all their forces, gathered close about their lonely, timid, upward-beating heart, they must learn to love. but learning-time is always a long, secluded time, and so loving, for a long while ahead and far on into life, is--solitude, intensified and deepened loneness for him who loves. love is at first not anything that means merging, giving over, and uniting with one another (for what would a union be of something unclarified and unfinished, still subordinate--?), it is a high inducement to the individual to ripen, to become something in himself, to become world, to become world for himself for another's sake, it is a great exacting claim upon him, something that chooses him out and calls him to vast things. only in this sense, as the task of working at themselves, might young people use the love that is given to them. merging and surrendering and every kind of communion is not for them (who must save and gather for a long, long time still), is the ultimate, is perhaps that for which human lives as yet scarcely suffice.young people err so often and so grievously in this: that they (in whose nature it lies to have no patience) fling themselves at eachother, when love takes posession of them, scatter themselves, just as they are, in all their untidiness, disorder, confusion... and then what? what is life to do to this heap of half-battered existence which they call their communion and which they would gladly call their happiness, if it were possible, and their future? thus each loses himself for the sake of the other and loses the other and many others that wanted still to come. and loses the expanses and the possibilities, exchanges the approach and flight of the gentle, divining things for an unfruitful perplexity out of which nothing can come any more, nothing save a little disgust, disillusionment and poverty, and rescue in one of the many conventions that have been put up in great number like public refuges along this most dangerous road. no realm of human experience is so well provided with conventions as this: life-preservers of most varied invention, boats and swimming-bladders are here; the social conception has managed to supply shelters of every sort, for, as it was disposed to take love-life as a pleasure, it had also to give it an easy form, cheap, safe and sure, as public pleasures are.
-rainer maria rilke