Also, seminary in Israel is better because ????? ???? ????? ????? (Bava Basra 158b).
The Chashukei Chemed there writes:
??? ????? ??”? ????? ?? ???? ?? ??????: ???? ????? ??????? ???”? ??? ?????? ???? ??????? ???? ??? ??? ???? ?? ????? ??? ????? ????? ??? ????? ????? ???? ??????? ????? ????? ????? ?? ?????? ?????? ?????? ????? ????? ??? ???? ?? ????? ?? ??? ???? ?????? ?????? ???? ????? ????? ???? ???? ????????? ???? ???? ?? ??? ?”? ??? ??? ???? ??? ???? ????? ???? ????? ????? ?? ??? ??? ??? ????? ?????? ??? ????? ?? ??? ??????? ??. ?????: ???? ????? ‘???? ??? ????? ?? ?????… ?????? ?? ??? ???? ?? ????? ?? ????? ?? ???? ???? ??????’ (????? ??) ????? ???? ???? ??? ?????? ???? ????? ???? ???? ?? ????? ?? ???? ??? ????? ??? ?? ??? ???? ?? ????? ?? ???? ?? ???? ???? ????? ????? ???? ?? ????? ?”? ????? ?????? ?? ???? ?? ???? ???? ????? ????? ???? ??? ?? ???? ??? ?? ??? ??? ???? ?? ???? ????? ?????? ???? ?? ?? ?????? ???? ???? ?? ?????? ??”? ???? ???? ???? ???? ????? ????? ??? ???? ?????? ??? ?????? ??? ????? ???? ?? ????? ???? ????? ??”? ??? ??? ???? ???? ????? ?? ???? ??? ?? ?? ???? ?????? ?? ??? ?? ?? ??”? ?? ????? ??? ????? ?? ????? ??? ??? ????? ????? ????? ??????? ??? ??? ??? ???? ????? ?? ?????? ????? ??? ????? ??????? ???? ????? ??? ????? ???? ??? ?? ??”? ?????? ???? ??? ???? ???? ????? ????? ???? ?? ?? ???? ??? ???? ???? ????”? ?? ???? ?? ???? ???? ???? ???? ?????? (?????? ?? ?? ?”?) ?? ?? ???? ?????? ???? ??? ??? ??”? ???? ??????? ????? ?????? ???? ???? ??? ?? ???? ???? ????? ??? ???? ????? ‘???? ??? ????? ?? ?????’ ???”? ??? ???? ????? ???? ????? ?? ????? ?? ??? ???? ?? ????? ?? ????? ?? ???? ???? ????? ??”? ?????? ??”? ????? ??? ????? ???? ????? ????? ?? ??? ???? ??? ???? ?????? ??? ????? ??? ???? ???? ??? ???? ??? ?? ???? ?? ????? ??”? ??? ???? ??”? ???? ?????? ??? ????? ??”? ???? ??? ????? ???? ??? ??? ?? ???? ?????? ?? ?? ????? ?????? ???? ????? ??”? ?? ??? ????? ????? ?? ????? ??”?
If a quick visit to Israel helps for the future, then surely a year long stay will help, and even more certainly for the present.