Once a Nazir; Always a Nazir

It is written: And afterwards, the nazir may drink wine. The Gemora cites several opinions as to when precisely is he permitted to drink wine and become tamei to the dead. According to one opinion, he only has to wait until after one of the korbanos have been brought, and according to another opinion, he is required to wait until all the korbanos have been brought.

The question is asked: Why does the Torah say that the nazir is permitted to drink wine? He is no longer a nazir!

Reb Moshe Feinstein answers that the inspiration that a nazir attains from abstaining from some of the worldly pleasures remains with him his entire life. Although the halachos of nezirus no longer apply to him, he is nevertheless in an elevated state, similar to the sanctity he had imposed upon himself during the term of his nezirus.