What’s in a name?

LECH LECHAWhat’s in a name?We’ve all heard the stories about baby-naming. Name after a grandparent? The meaning of names is an important topic. We all give names to our children for long life, and today we wish to discuss: what is a good name? And how does one even choose a name?We must therefore carefully examine the secret and meaning of names, and we will do so by looking at a major question in the Torah portion of Lech Lecha: How did the addition of just one letter to the names of Avram and Sarai change their destiny, enabling them to give birth to Yitzchak? How could it be that an elderly couple, who had been childless for over eighty years, who saw in the stars that they would never have children and had completely despaired of the possibility- were suddenly “reborn” through the seemingly technical step of adding the letter "hei" to their names?