i think it is a sort of feeling. as we don't know which is the best to us , we change ourself to find a better one. when we find a better one , we don't know how to enjoy it,because we don't know whether it is the best or not in our life. so , enjoy your life whenever it is sad or sweet.....

Time passes quickly when we are happy because when we are happy we do not care about time so that we feel that he is running out.. Everything in our eyes always change because all things in our life is change also the human is change..

*when

u r really sweet whithh your first question ..;.) if the sweet thing to be eternal u never enjoy the real sweet things, and all change in front our eyes because we changing all time too , is beautiful our transformation in this world ..i am all time courios , live is amazing dear ...never lost your sweet things ...smell better hen u remember it

cz the life always doesnot give us what we looking for and when it give us one of them it will be alittle like time passed so quickly love end suddenly and thing we loved empty so quicjly like pepsi hmmmm everything changed cz it possible pretend like a good thing friends pretend that they r so closer to you so sincerly so kind with you but they betrayed you i hope you get my mind see you all my friend interessting in this topic thanks alot