What are the implications of "Ya'er Hashem ... Viyechuneka"?
Rashi: 'Hashem's Face will light-up when He looks at you and treat you graciously'.
Targum Yonasan: Hashem will shine His Face upon you when you study Torah and reveal hidden things to you, and treat you with compassion'.
And what are the implications of "Vi'yechuneka"?
Rashi: It implies that Hashem will treat you graciously.