Musar su Genesi 29:11

The patriarchs and matriarchs were on a spiritual level approaching that which in the future will exist among ordinary people. This enabled them to express themselves in a totally unrestrained manner. Whereas ordinary people, in order not to appear gross, must describe every reference to sexual activity by something the sages call לשון נקיה, euphemistic language, the patriarchs and matriarchs had no need to resort to this; their holiness was natural, the result of child-like innocence. This also explains why Jacob is reported as kissing Rachel the moment they met, and why such conduct is not considered suggestive. This is why Rashi explains that Jacob's meaning was simply: "When can I begin to sire the twelve tribes?" ...

This is what the Torah alluded to when it described Jacob as kissing Rachel and raising his voice and beginning to cry (29,11). Rashi comments there that the reason Jacob cried was because he foresaw that Rachel would not be buried alongside him. This comment is difficult. The fact that Rachel would not be buried with Jacob hardly seems an adequate reason for him to cry about! No doubt Rashi meant that Jacob had a vision of the reason that Rachel would not be buried alongside him, that his descendants would be exiled and that she needed to intercede with G–d on their behalf. Rashi gave a somewhat similar commentary in Genesis 48,7, where Jacob justified himself to Joseph for asking to be buried in Machpelah, though he had failed to bury Joseph's mother Rachel there. We see that there is a spiritual association between Rachel and צאן, the description used for the Jewish people when the latter are in exile.